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    Wyświetlanie 1-32 z 32
    Tytuł:
    The Influence of the Ship Yawing on the Target Tracking Process
    Autorzy:
    Juszkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/320534.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    ARPA
    śledzenie radarem
    radar tracking
    Opis:
    Precision of the data obtained in the object tracking process performed by the ARPA systems, depends very much on weather conditions. Main factors resulting from bad weather conditions and having an influence on the precision of object tracking process are ship's rolling and yawing. Results of the experiment conducted in the ARPA simulator, whose objective was to define tracking errors resulting from ship yawing, are presented in this paper.
    Źródło:
    Annual of Navigation; 2008, 13; 67-74
    1640-8632
    Pojawia się w:
    Annual of Navigation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Precision of ship steering along a waterway bend with the use of ARPA information
    Autorzy:
    Juszkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/320649.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    ARPA
    manewry statków
    ship's manoeuvres
    Opis:
    The usage of stationary object tracking information while steering a ship along a marked waterway relies on the constant estimation of the object passing distance made by the navigator. This information is available both in the alphanumeric form (target data) and in the graphic form (relative vectors). While making decisions, the navigator has to take into consideration the limitations of ARPA devices, particularly delays in transferring information about tracked objects occurring when ships are making manoeuvres. The results of the experiment performed in the radar-navigation NMS-90 simulator, which has been conducted in order to establish the usability of the stationary object tracking information in the process of ship steering along a marked waterway are described in this article.
    Źródło:
    Annual of Navigation; 2009, 15; 49-53
    1640-8632
    Pojawia się w:
    Annual of Navigation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of correctness of information obtained from Automatic Identification of Ships System (AIS)
    Autorzy:
    Śniegocki, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/247446.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    AIS
    ARPA
    collision avoiding
    data verification
    Opis:
    In order to provide safety of navigation, the ship's officer employs a lot of different devices which are installed on navigational bridge. One of them, very useful equipment is system for Automatic Identification of Ships (AIS). How ever, the Information thus obtained can be inaccurate or even false. In this article the author presented ways to verify the data obtained from Automatic Identification of Ships (AIS) with the help of radar (ARPA). The advantages of earlier verification of information obtained from AIS are presented when a vessel is manoeuvring and the data presented by ARPA are not reliable. An algorithm of a program which makes it possible to verify the reliability of data obtained from AIS has been presented here. A possibility has been demonstrated of constructing a device employing that algorithm in order to support the navigating officer in making decisions avoiding collisions. This system will alert the Watch Officer about incorrectness and about inaccuracy of ARPA and AIS. This solution could be a very helpful tool to be used in adverse weather conditions particularly for the vessels in collision situation.
    Źródło:
    Journal of KONES; 2010, 17, 3; 437-442
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza wpływu informacji z logu na dokładność śledzenia obiektów w urządzeniach ARPA
    Own Ships Speed Information Influence on the Tracking Accuracy in ARPA Systems
    Autorzy:
    Juszkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/359949.pdf
    Data publikacji:
    2004
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    ARPA
    śledzenie
    EXPLO-SHIP 2004
    tracking
    Opis:
    Istotnym czynnikiem mającym wpływ na dokładność estymacji ruchu śledzonego obiektu realizowanej w urządzeniach ARPA jest dostarczenie precyzyjnej informacji o parametrach ruchu statku własnego. W przypadku, gdy informacja ta obarczona jest stałym błędem, jedynie parametry ruchu rzeczywistego śledzonych jednostek zostaną wyliczone niewłaściwie. W artykule przedstawiono wyniki badań dokładności procesu estymacji przy błędnej informacji o prędkości rzeczywistej statku własnego.
    One of the most important factors of the tracked target movement estimation accuracy is precise information on own ship's true course and speed. If this information is incorrect due to constant error, the computed true course and speed of the tracked target could be false. The research herein presented has dealt with the estimation accuracy in the case when the information on true speed of own ship is false.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2004, 2 (74); 183-192
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Integrity of Information Received by Means of AIS During Anti-collision Manoeuvring
    Autorzy:
    Felski, A.
    Jaskólski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/116106.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    anticollision
    Automatic Identification System (AIS)
    radar
    ARPA
    Opis:
    Radar and ARPA feature certain efficacy limitations due to weather conditions and target manoeuvres. Therefore, it appears rational to supplement the information derived from radar with additional information. A system which is claimed to be tailored to perform this task is AIS delivering proper information automatically and continuously. However, in certain users opinion, integrity of AIS data is still insufficient. In this paper, discussion concerning incompleteness and integrity of this type of data is presented. To prove effectiveness of AIS dynamic data in collision avoidance, detailed investigations have been conducted. Analysed data originate from the Gulf of Gdansk, dating back to the years 2006‐2012. According to the research results, there are exceptional situations, when the information coming from the sensors cooperating with AIS is incomplete. This problem concerns information related to HDG and ROT, especially, when the vessels are not “on the way”.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 1; 95-100
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Supporting navigator’s decisions by visualizing ship collision risk
    Autorzy:
    Szłapczyński, R.
    Śmierzchalski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/258668.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    ARPA display
    collision avoidance manoeuvres
    collision risk
    navigation
    Opis:
    The paper introduces a visualization method that enables the navigator to estimate an encounter situation and choose collision avoidance manoeuvre, if necessary. It is based on the Collision Threat Parameters Area method and offers new features: fuzzy sectors of forbidden speed and course values, the possibility to use any given ship domain and a new formula of collision risk assessment. All these elements result in a method, which enables the navigator to differentiate between varying levels of risk and to point out the direct threats. The method is fast enough to be applied in the real-time decision support system.
    Źródło:
    Polish Maritime Research; 2009, 1; 83-88
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comaparative study of the accuracy of AIS and ARPA indications. Part 2. Accuracy of the opposite vessel true course and true speed indication
    Autorzy:
    Wawruch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/116449.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Automatic Identification System (AIS)
    ARPA
    Closest Point of Approach (CPA)
    radar equipment
    accuracy
    accuracy of position
    accuracy of AIS indications
    accuracy of ARPA indications
    Opis:
    The article presents analysis of the automatic radar plotting aid (ARPA) and automatic identification system (AIS) indications reliability performed on the base of the results of measurements conducted on merchant vessels at sea. In the first part of the article titled “Comparative study of the accuracy of AIS and ARPA indications. Part 1. Accuracy of the CPA indications” are described: vessels on which the tests were carried out, AIS and radar equipment installed on them, observed meeting situations and accuracy of the CPA indication. In this article are discussed, for the same meeting situations, accuracy of the information on true course and true speed of the opposite vessel presented by ARPA and AIS and correlation between this accuracies and errors of the CPA indication.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 4; 673-678
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Display Mode for Choosing the Manoeuvre for Collision Avoidance
    Autorzy:
    Vagushchenko, L.
    Vagushchenko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117270.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    anticollision
    Manoeuvring
    Collision Avoidance
    ECDIS
    ARPA
    Planned Route
    B-Manoeuvre
    COLREGs
    Opis:
    The display mode is intended for facilitation of building strategies for collision avoidance by so-called B-manoeuvres. It can be used in ECDIS, ARPA and the simulator systems. B-manoeuvre includes the segment of deviation at a certain angle from the initial course and at the end of it the segment parallel to the initial way’s line (planned route). The offered mode is based on the use of forbidden domains for B-manoeuvres. These domains allow choosing parameters and beginning moment of B-manoeuvre for collision avoidance with one or a few vessels. The account of presence of navigation hazards at the choice of B-manoeuvre is produced by setting the borders of maximum lateral shifting from planned route. The offered mode enables visual drafting of strategies for collision avoidance with vessels by successive B-manoeuvres. It is possible to use this mode as basis of computer search of strategies for collisions avoidance with a few targets.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 327-329
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Real-time generator of AIS/ARPA/GPS data
    Generator danych AIS/ARPA/GPS w czasie rzeczywistym
    Autorzy:
    Kaczmarek, S.
    Sac, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/223007.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
    Tematy:
    AIS
    ARPA
    GPS
    NMEA 0183
    realtime generator
    generator w czasie rzeczywistym
    Opis:
    The paper presents a real-time generator of AIS/ARPA/GPS position data in the standardized NMEA 0183 text format. Position data are produced by a set of various types of ships simulated on the Polish part of the Baltic Sea and are generated on defined IP/UDP addresses and RS-232 ports. In the simulation an extensive set of input parameters is taken into account including the number of particular types of ships, their dimensions, speed as well as parameters of AIS equipments, ARPA radars and GPS receivers. The paper describes the architecture and implementation of the generator. Additionally, it demonstrates the application of the developed generator to test the software developed for the Polish Border Guard.
    W artykule zaprezentowano generator danych pozycyjnych AIS/ARPA/GPS w czasie rzeczywistym w zestandaryzowanym formacie tekstowym NMEA 0183. Dane pozycyjne są generowane przez zbiór różnorodnych rodzajów statków symulowanych w obrębie polskiej części Morza Bałtyckiego na zadane adresy IP/UDP i porty RS-232. Podczas symulacji uwzględniany jest szeroki zbiór parametrów wejściowych, w tym liczba poszczególnych rodzajów statków, ich rozmiary, prędkość, a także parametry nadajników i odbiorników AIS, radarów ARPA, odbiorników GPS. W artykule opisano architekturę i realizację generatora. Dodatkowo przedstawiono jego zastosowanie do testowania oprogramowania zrealizowanego dla Straży Granicznej.
    Źródło:
    Zeszyty Naukowe Akademii Marynarki Wojennej; 2016, R. 57 nr 1 (204), 1 (204); 55-67
    0860-889X
    Pojawia się w:
    Zeszyty Naukowe Akademii Marynarki Wojennej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Weryfikacja dokładności planowania manewru próbnego w urządzeniach ARPA
    The Verification of Anti-collision Trial Manoeuvre Accuracy in ARPA Systems
    Autorzy:
    Juszkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/360481.pdf
    Data publikacji:
    2006
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    śledzenie
    ARPA
    bezpieczeństwo żeglugi
    EXPLO-SHIP 2006
    tracking
    safety of navigation
    Opis:
    Podstawowym zadaniem stawianym przed urządzeniami umożliwiającymi automatyczne śledzenie obiektów jest zapewnienie obserwatorowi możliwości właściwej oceny sytuacji panującej wokół statku własnego, włączając w to możliwość zaplanowania skutecznego i bezpiecznego manewru zapobiegawczego. W artykule przedstawiono wyniki eksperymentu przeprowadzonego w symulatorze nawigacyjnoradarowym, którego celem była weryfikacja dokładności planowania akcji zapobiegawczej z użyciem funkcji TRIAL.
    The main goal of tracking systems is providing the observer with a proper safety assessment, including a possibility of proper and effective trial manoeuvre planning. For the trial manoeuvre accuracy examination, some typical scenarios were simulated in a radar simulator. The research results of trial function accuracy are presented in the article.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2006, 11 (83); 113-122
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Deduplication of tracked objects position data at single observation point of a Vessel Monitoring System
    Deduplikacja danych pozycyjnych obiektów nawodnych śledzonych w pojedynczym punkcie obserwacji
    Autorzy:
    Hajduczenia, J.
    Kaczmarek, S.
    Sadowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/955988.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
    Tematy:
    Vessel Monitoring System
    deduplication of position data
    fusion of AIS and ARPA data
    system monitoringu statków
    deduplikacja danych pozycyjnych
    fuzja danych z AIS i ARPA
    Opis:
    Vessel Monitoring System (VMS) play a major role in safety navigation. In most cases they are based on two data sources, namely Automatic Identification System (AIS) and Automatic Radar Plotting Aids (ARPA). Integration of data obtained from these sources is an important problem, which needs to be solved in order to ensure the correct performance of a given VMS. In this paper basic functions which should be implemented in a tracked objects position data deduplication module are described. An example based on their practical implementation is also presented.
    Systemy kontroli i śledzenia ruchu statków w znacznym stopniu zwiększają bezpieczeństwo nawigacji morskiej. W większości przypadków bazują one na danych pozyskiwanych z dwóch źródeł: AIS (Automatic Identification System) i ARPA (Automatic Radar Plotting Aids). Integracja tego typu danych stanowi jeden z istotnych problemów, koniecznych do rozwiązania w trakcie implementacji wspomnianych systemów. W artykule scharakteryzowano podstawowe funkcjonalności, które powinny zostać zaimplementowane w module deduplikacji danych pozycyjnych śledzonych obiektów, a także przedstawiono przykład ich praktycznej realizacji.
    Źródło:
    Zeszyty Naukowe Akademii Marynarki Wojennej; 2015, R. 56 nr 2 (201), 2 (201); 23-32
    0860-889X
    Pojawia się w:
    Zeszyty Naukowe Akademii Marynarki Wojennej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Risk of Collision Assessment with Grapphic Forms of Target Data Presentation Use
    Autorzy:
    Juszkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/320877.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    ARPA
    safety of navigation
    tracking
    target data presentation
    IMO performance standards
    Opis:
    Guarantee of the ship safety is the primary task posed for modern navigation systems. This concerns monitoring the proper ship position as well as providing accurate information about the collision threat. The proper interpretation of this information belongs to the navigator. He must take into account many variables affecting the assessment of the situation and then make the right decision regarding anti-collision manoeuvres. This assessment could be made easier for him with use some form of graphic target data presentation methods other than currently required and described in IMO performance standards. Other possible graphic presentation methods of collision information are described in the article along with the concept of their usage.
    Podstawowym zadaniem stawianym przed nowoczesnymi systemami nawigacyjnymi jest zapewnienie bezpieczeństwa statku. Dotyczy to zarówno konieczności właściwej kontroli pozycji statku jak i dostarczenia rzetelnej informacji o zagrożeniu kolizyjnym. Właściwa interpretacja tej informacji należy do nawigatora. Musi on uwzględnić wiele zmiennych czynników mających wpływ na ocenę sytuacji, a następnie podjąć właściwą decyzję odnośnie podejmowanych manewrów antykolizyjnych. Możliwość zastosowania innej formy graficznej prezentacji informacji niż wymagana obecnie przez przepisy może ułatwić mu taka ocenę. W artykule przedstawione zostały inne sposoby graficznej prezentacji informacji kolizyjnej wraz z koncepcją ich wykorzystania.
    Źródło:
    Annual of Navigation; 2018, 25; 27-39
    1640-8632
    Pojawia się w:
    Annual of Navigation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-criteria optimization of multi-step matrix game in collision avoidance of ships
    Autorzy:
    Lisowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/116609.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    collision avoidance
    matrix game
    multicriteria optimisation
    collision risk
    safe trajectories
    colregs
    ARPA
    mathematical model
    Opis:
    This research article formulates a mathematical model of the matrix game of the safe ship control process containing: state variables and control, collision risk definition and the form of a collision risk matrix. Multicriteria optimization of the matrix game was introduced, leading to non-cooperative and cooperative game control algorithms and non-game control. Simulation safe trajectories of own ship for various types of control were compared to the example of the real situation at sea.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 125-131
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Verification of automatic drift calculation accuracy using an automatic radar plotting aid
    Autorzy:
    Juszkiewicz, W.
    Nowy, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/135236.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    automatic drift calculation
    ARPA
    safety of navigation
    radar simulator
    radar picture stabilization
    IMO performance standards
    Opis:
    One consideration required in the resolution concerning radar and automatic radar plotting aid (ARPA) equipment is the possibility of an automatic drift calculation being realized in the base of fixed target tracking. This information is very important to providing safe navigation, especially in restricted areas. This paper presents an analysis of the present regulations contained in IMO resolutions and the results of an experiment conducted in the ARPA simulator. The aim of the simulations was to verify the reliability of the information presented on the ARPA display and to determine the accuracy of the automatic drift calculation implemented in the simulator.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 88-94
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An assessment of ship encounter situations based on predicted points of collision
    Autorzy:
    Galor, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/135643.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    encounter situation
    collision of ships
    radar
    ARPA
    closest point of approach
    predicted point of collision
    Opis:
    A number of factors affect the safety of navigation, the collision of two ships being one of them. In ship encounter situations, certain principles of behaviour set forth by regulations are in force. Traditionally, a navigational situation is evaluated by identifying the closest point of approach for the passing ships and by comparing it with the assumed safe distance. Then it is necessary to use technical aids: radar and Arpa (depending on the regulations). In Arpa, navigational situation information is mainly presented in the form of vectors. The other presentation that can be used in an encounter situation is the predicted point of collision (PPC). This is the point or points toward which one’s own ship should steer at her present speed (assuming that the target does not manoeuvre) in order for a collision to occur. This paper presents original results of a study into the assessment of ship encounter situations based on PPC. The methods (analytical and graphical) of PPC as a set of circles are elaborated and an analysis of a ship encounter situation performed.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 82-87
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study Reliability of the Information About the CPA and TCPA Indicated by the Ships AIS
    Autorzy:
    Wawruch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/117321.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    maritime-related data
    AIS Data
    Automatic Identification System (AIS)
    CPA
    TCPA
    ARPA
    reliability of information
    colregs
    Opis:
    According to the IMO recommendation when the target data from AIS and radar tracking are both available and the association criteria are fulfilled such that the AIS and radar information are considered as for one physical target, then as a default condition in radar equipment, the AIS target symbol and the alphanumerical AIS target data should be automatically selected and displayed only. The article presents research conducted in real conditions on the reliability of information presented by the ship's AIS about the passing distance with the other vessel equipped with AIS and time to pass it by comparing data from the AIS with that presented by ARPA.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 3; 417-424
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena przydatności wskazań AIS i ARPA do planowania manewru antykolizyjnego
    Assessment of the usefulness of AIS and ARPA indications for planning collision avoiding manoeuvre
    Autorzy:
    Wawruch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/311997.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Naukowo-Wydawniczy "SPATIUM"
    Tematy:
    symulator radarowo-nawigacyjny NAVSIM 90
    AIS
    ARPA
    radar-navigational simulator NAVSIM 90
    AIS (Automatic Identification System)
    Opis:
    W artykule przedstawiono wyniki badań dokładnościowych wskazań przez ARPA i AIS wartości odległości największego zbliżenia (CPA) statku przeciwnego do statku własnego, zrealizowanych na symulatorze radarowo-nawigacyjnym NAVSIM 90. Pomiary przeprowadzono w celu sprawdzenia, czy na urządzeniu symulacyjnym przeznaczonym do szkolenia i egzaminowania pilotów i oficerów statków handlowych można odtworzyć błędy wskazań statkowego AIS wykryte w czasie badań w warunkach rzeczywistych opisanych w pozycji bibliograficznej przywołanej w artykule.
    The article presents results of the accuracy tests of indicated by AIS and ARPA closest point of approach (CPA) of the opposite vessel to the own ship, conducted on the radar-navigational simulator NAVSIM 90. The measurements were carried out to verify that the simulator designed for training and examination pilots and officers of merchant ships can reproduce errors of shipboard AIS detected during the researches carried out under real conditions described in the references cited in the article.
    Źródło:
    Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 6; 1112-1115, CD
    1509-5878
    2450-7725
    Pojawia się w:
    Autobusy : technika, eksploatacja, systemy transportowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the form of presentation of graphic-tracked target data – sectors of dangerous courses
    Autorzy:
    Juszkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/135569.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    ARPA
    safety of navigation
    radar tracking
    target data presentation
    sector of danger
    IMO performance standards
    Opis:
    At present, providing a clear presentation of the navigational situation around a navigator’s own ship (OS) is one of the most important issues facing device manufacturers. Integration of navigational devices on the bridge has made it possible to transfer information and present it in the form chosen by the navigator screen. However, this may cause a decrease in the clarity of information and hamper its interpretation. The ability to select the best information, and that which is most needed at a given moment, depends on navigator proficiency. Vectors are still the basic form of the graphic presentation of radar-tracked object data. However, the ability to track more objects at the same time in crowded areas results in a decrease in readability and can cause errors. This article introduces the possibility of presenting information about collision danger in the form of Dangerous Courses Sectors (DCS) together with an analysis of changes in these during typical ship encounter situations. DCS are calculated on the base of Dangerous Passing Areas (DPA) as bearings on the marginal points of these areas.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 53 (125); 68-73
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of ship approach parameters in the polar coordinates system
    Autorzy:
    Banachowicz, A.
    Wolski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/106735.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    safety of navigation
    maritime navigation
    navigational mathematics
    ARPA
    EPA
    bezpieczeństwo żeglugi
    nawigacja morska
    matematyka nawigacyjna
    Opis:
    An essential aspect of the safety of navigation is avoiding collisions with other vessels and natural or man made navigational obstructions. To solve this kind of problem the navigator relies on automatic anti-collision ARPA systems, or uses a geometric method and makes radar plots. In both cases radar measurements are made: bearing (or relative bearing) on the target position and distance, both naturally expressed in the polar coordinates system originating at the radar antenna. We first convert original measurements to an ortho-Cartesian coordinate system. Then we solve collision avoiding problems in rectangular planar coordinates, and the results are transformed to the polar coordinate system. This article presents a method for an analysis of a collision situation at sea performed directly in the polar coordinate system. This approach enables a simpler geometric interpretation of a collision situation.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2014, 96; 1-8
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie parametrów ruchu statków na podstawie obserwacji ARPA i AIS
    Ship movement parameters compare based on ARPA and AIS observation
    Autorzy:
    Stupak, T.
    Wąż, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/316106.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Naukowo-Wydawniczy "SPATIUM"
    Tematy:
    wektor ruchu
    ruch statku
    Systemu Automatycznej Identyfikacji Statków
    AIS
    ARPA
    motion vector
    ship traffic
    Automatic Ship Identification System
    Opis:
    W artykule przedstawiono badania wektora ruchu prowadzone w laboratorium radarowym Akademii Morskiej w Gdyni, oraz podczas rejsów na statkach. Badano dokładność wyznaczenia położenia statku, kursu, prędkości i odległości najmniejszego zbliżenia wykorzystując radary statkowe oraz dane z Systemu Automatycznej Identyfikacji. Stwierdzono, że dokładność wyznaczania badanych parametrów jest większa niż narzucają wymagania Międzynarodowej Organizacji Morskiej.
    This article presents the movement vector research conducted in the radar laboratory of Gdynia Maritime University and during vessel cruises. The precision of designating the vessels' location, course, speed and CPA were researched using on-baord radars and AIS data. It is concluded that the precision of designating the researched parameters is greater than the International Maritime Organization requires.
    Źródło:
    Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 12; 438-441, CD
    1509-5878
    2450-7725
    Pojawia się w:
    Autobusy : technika, eksploatacja, systemy transportowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study of optimization of Alpha-Beta-Gamma-Eta filter for tracking a high dynamic target
    Autorzy:
    Jeong, T.
    Pan, B.F.
    Njonjo, A.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/116199.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    integrated navigation
    Alpha-Beta-Gamma filter
    Kalman filter
    high dynamic target
    ships tracking
    target dynamics
    Jerky Model
    ARPA
    Opis:
    The tracking filter plays a key role in accurate estimation and prediction of maneuvering vessel’s position and velocity. Different methods are used for tracking. However, the most commonly used method is the Kalman filter and its modifications. The Alpha-Beta-Gamma filter is one of the special cases of the general solution pro-vided by the Kalman filter. It is a third order filter that computes the smoothed estimates of position, velocity and acceleration for the nth observation, and also predicts the next position and velocity. Although found to track a maneuvering target with a good accuracy than the constant velocity, Alpha-Beta filter, the Alpha-Beta-Gamma filter does not perform impressively under high maneuvers such as when the target is undergoing changing accelerations. This study, therefore, aims to track a highly maneuvering target experiencing jerky motions due to changing accelerations. The Alpha-Beta-Gamma filter is extended to include the fourth state that is, constant jerk to correct the sudden change of acceleration in order to improve the filter’s performance. Results obtained from simulations of the input model of the target dynamics under consideration indicate an improvement in performance of the jerky model, Alpha-Beta-Gamma-Eta, algorithm as compared to the constant acceleration model, Alpha-Beta-Gamma in terms of error reduction and stability of the filter during target maneuver.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 49-53
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative Study of the Accuracy of AIS and ARPA Indications. Part 1. Accuracy of the CPA Indications
    Autorzy:
    Wawruch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/117390.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Automatic Identification System (AIS)
    ARPA
    Closest Point of Approach (CPA)
    accuracy
    CPA Accuracy
    comparative study
    radar tracking
    AIS target
    Opis:
    According to the IMO recommendation when the target data from radar tracking and AIS are both available and the association criteria are fulfilled such that the radar and AIS information are considered as for one physical target, then as a default condition in radar equipment should be automatically selected and displayed the AIS target symbol and the alphanumerical AIS target data only. The article presents research conducted in real sea conditions on the reliability of information presented by the ship's AIS and ARPA about the passing distance with the other vessel tracked by radar equipment and fitted with AIS.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 439-443
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Assessment of Drafting Ship Movement Parameters Using Radar and the Automatic Identification System
    Autorzy:
    Stupak, T.
    Wąż, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/116516.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Automatic Identification System (AIS)
    radar
    ship movement parameters
    movement vector research
    IMO standards
    ARPA
    vessel movement vector
    GMU radar laboratory
    Opis:
    This article presents the movement vector research conducted in the radar laboratory of Gdynia Maritime University and during vessel cruises. The precision of designating the vessels' location, course, speed and CPA were researched using on-baord radars and AIS data. It is concluded that the precision of designating the researched parameters is greater than the International Maritime Organization requires.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 301-304
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    DSSA+: distributed collision avoidance algorithm in an environment where both course and speed changes are allowed
    Autorzy:
    Hirayama, K.
    Miyake, K.
    Shiotani, T.
    Okimoto, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/116483.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    collision avoidance
    collision avoidance algorithm
    vessel course changes
    vessel speed changes
    Distributed Stochastic Search Algorithm (DSSA)
    colregs
    ARPA
    Distributed Constraint Optimization Problem (DCOP)
    Opis:
    Distributed Stochastic Search Algorithm (DSSA) is one of state-of-the-art distributed algorithms for the ship collision avoidance problem. In DSSA, whenever a ship encounters with any number of other ships (neighboring ships), she will select her course with a minimum cost after coordinating their decisions with her neighboring ships. The original DSSA assumes that ships can change only their courses while keeping their speed considering kinematic properties of ships in general. However, considering future possibilities to address more complex situations that may cause ship collision or to deal with collision of other vehicles (such as mobile robots or drones), the options of speed changes are necessary for DSSA to make itself more flexible and extensive. In this paper, we present DSSA+, as a generalization of DSSA, in which speed change are naturally incorporated as decision variables in the original DSSA. Experimental evaluations are provided to show how powerful this generalization is.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 117-123
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reconstructing a Marine Casualty: The Effectiveness of the Full-Mission Simulator as a Casualty Analysis Tool
    Autorzy:
    Doyle, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/117489.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Casualty Analysis Tool
    Maritime Casualties
    Full Mission Bridge Simulator (FMBS)
    Marine Safety Investigation
    Collision Case Study
    ARPA Simulation
    Simulator Reconstruction
    Effectiveness of Simulator
    Opis:
    The primary purpose of a marine casualty investigation is to seek to establish the causal factors of the casualty with a view to learning the hard lessons and avoiding a repetition. The broad questions of an investigation: ""who?, what?, when?, where?, why?, and how?"", all help to uncover the facts. The investigation sequence will cover a diverse range of fact-finding activities, amongst which, as often the case, may be a requirement for “conducting specialised studies”. Following the fact-finding stage the typical investigation progresses to analysis of the facts, reaches conclusions and makes recommendations. Keeping an open mind, to avoid premature conclusions, requires the separation of the fact-finding and analysis phases. But the analysis may well help to identify missing pieces of evidence, or different lines of enquiry that may otherwise have gone undetected. As an effective reconstruction tool, a full-mission bridge simulator offers an opportunity to examine a broad spectrum of environmental conditions and vessel characteristics, as well as equipment failures, human factors and operating procedures. A casualty incident can be reconstructed in a real-time simulated environment, to aid more detailed analysis. Within the usual confines of the legal process, comprehension of nautical ‘black magic’ is greatly simplified for non-mariners, by seeing the simulated casualty incident unfold, in real-time or in selected short-time segments.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 275-279
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of Ship Collision Risk Index Based on Complex Plane and Its Realization
    Autorzy:
    Xu, X.
    Geng, X.
    Wen, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/116223.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    risk
    risk calculation
    ship collision risk index
    risk index
    ships domain
    Decision Support System (DSS)
    modeling of ship collision risk index
    ARPA
    Opis:
    Ship collision risk index is the basic and important concept in the domain of ship collision avoidance. In this paper, the advantages and deficiencies of the various calculation methods of ship collision risk index are pointed out. Then the ship collision risk model based on complex plane, which can well make up for the deficiencies of the widely-used evaluation model proposed by Kearon.J and Liu ruru is proposed. On this basis, the calculation method of collision risk index under the encountering situation of multi-ships is constructed, then the three-dimensional image and spatial curve of the risk index are figured out. Finally, single chip microcomputer is used to realize the model. And attaching this single chip microcomputer to ARPA is helpful to the decision-making of the marine navigators.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 251-256
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-criteria ACO-based algorithm for ship’s trajectory planning
    Autorzy:
    Lazarowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116548.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    colregs
    ships manoeuvering
    Ant Colony Optimization (ACO)
    ship’s trajectory planning
    route planning
    multi-criteria ACO-based algorithm
    guidance
    navigation and control (GNC)
    ARPA
    Opis:
    The paper presents a new approach for solving a path planning problem for ships in the environment with static and dynamic obstacles. The algorithm utilizes a heuristic method, classified to the group of Swarm Intelligence approaches, called the Ant Colony Optimization. The method is inspired by a collective behaviour of ant colonies. A group of agents - artificial ants searches through the solution space in order to find a safe, optimal trajectory for a ship. The problem is considered as a multi-criteria optimization task. The criteria taken into account during problem solving are: path safety, path length, the International Regulations for Preventing Collisions at Sea (COLREGs) compliance and path smoothness. The paper includes the description of the new multi-criteria ACO-based algorithm along with the presentation and discussion of simulation tests results.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 31-36
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation method of collision risk by using true motion
    Autorzy:
    Imazu, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/117062.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    collision risk
    true motion
    ships manoeuvering
    Closest Point of Approach (CPA)
    ARPA
    Line of Predicted Collision (LOPC)
    Obstacle Zone by Target (OZT)
    Automatic Identification System (AIS)
    Opis:
    It is necessary to develop a useful application to use big data like as AIS for safety and efficiency of ship operation. AIS is very useful system to collect targets information, but this information is not effective use yet. The evaluation method of collision risk is one of the cause disturb. Usually the collision risk of ship is evaluated by the value of the Closest Point of Approach (CPA) which is related to a relative motion. So, it becomes difficult to find out a safety pass in a congested water. Here, Line of Predicted Collision (LOPC) and Obstacle Zone by Target (OZT) for evaluation of collision risk are introduced, these values are related to a true motion and it became visible of dangerous place, so it will make easy to find out a safety pass in a congested water.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 65-70
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Verification of ships trajectory planning algorithms using real navigational data
    Autorzy:
    Lazarowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117103.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Visibility Graph-search Algorithm (VGA)
    Discrete Artificial Potential Field (DAPF)
    real navigational data
    ARPA
    ship's trajectory planning
    ship's trajectory planning algorithms
    Ant Colony Optimization (ACO)
    Trajectory Base Algorithm (TBA)
    Opis:
    The paper presents results of ship's safe trajectory planning algorithms verification. Real navigational data registered from a radar with an Automatic Radar Plotting Aid on board the research and training ship Horyzont II were used as input data to the algorithms. The algorithms verified in the presented research include the Ant Colony Optimization algorithm (ACO), the Trajectory Base Algorithm (TBA), the Visibility Graph-search Algorithm (VGA) ant the Discrete Artificial Potential Field algorithm (DAPF). Details concerning data registration and exemplary results obtained with the use or real navigational data are introduced and summarized in the paper. Presented results prove the applicability of proposed algorithms for solving the ship's safe trajectory planning problem.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 3; 559-564
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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