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Wyświetlanie 1-15 z 115
Tytuł:
The reasons and results of changes in maritime navigation
Autorzy:
Czaplewski, K.
Urbański, J.
Kopacz, Z.
Morgaś, W.
Powiązania:
https://bibliotekanauki.pl/articles/225869.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
nawigacja morska
maritime navigation
Opis:
In this paper, there are presented the main reasons and results of changes in maritime navigation. The following issues are discussed: substance of maritime navigation; the main reasons of changes in maritime naigation; integration of the ship`s navigation process and its results; the growing necessity of supervising all the human activities performed at sea and the main results from the channges in maritime navigation. This paper should be considered as further precising and developing the authors` considerations and conclusions presented in their earlier works.
Źródło:
Reports on Geodesy; 2006, z. 2/77; 249-254
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The quantification of the cartographic information
Autorzy:
Kołaczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/320727.pdf
Data publikacji:
2016
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
maritime navigation
marine cartography
chart preparation
Opis:
The article contains methods for conducting and results of research on the optimization of the navigation charts scale. The methodology is based on the principles of information theory. The basis for the calculation were the data read from the Polish charts. Certain been recommended optimal scales of the navigation charts.
Artykuł zawiera metodykę prowadzenia i wyniki badań dotyczących optymalizacji skali kartograficznych map nawigacyjnych. Metodyka oparta została na założeniach teorii informacji. Podstawę obliczeń stanowiły dane odczytane z polskich map. Określone zostały zalecane optymalne skale map nawigacyjnych.
Źródło:
Annual of Navigation; 2016, 23; 259-268
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of coordinates error of navigational marks on the accuracy of position in radar navigation
Autorzy:
Banachowicz, A.
Wolski, A.
Powiązania:
https://bibliotekanauki.pl/articles/359845.pdf
Data publikacji:
2012
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
navigation
navigational mathematics
maritime navigation
pilot navigation
radar navigation
Opis:
Terrestrial navigation is one of the method of parametric navigation, i.e. a method of fix determination. Recently the method has become quite common again thanks to automated measurements of navigational parameters (radar navigation, radio direction finders and others) and connection with the ECDIS. The accuracy of position coordinates determined by such method is affected by navigational measurement errors and the accuracy of navigational mark coordinates used for position determination. The coordinates values are obtained from nautical publications (including charted data) or from an electronic chart data base. This article presents an original method for an analysis of how the accuracy of navigational mark coordinates affects the accuracy of ship’s fix. Considerations are supplemented with an example of the most common terrestrial position determination in marine navigation.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 31 (103); 24-28
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of square Msplit estimation in determination of vessel position in coastal shipping
Autorzy:
Zienkiewicz, M. H.
Czaplewski, K.
Powiązania:
https://bibliotekanauki.pl/articles/260266.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
robust estimation
maritime navigation
Msplit estimation
positioning
Opis:
The main aim of this paper is to assess the possibility of using non-conventional geodetic estimation methods in maritime navigation. The research subject of this paper concerns robust determination of vessel’s position using a method of parameters estimation in the split functional model (Msplit estimation). The studies performed will help in finding out if and in which situations the application of Msplit estimation as the method for determining vessel’s position is beneficial from the perspective of navigation safety. The results obtained were compared with the results of traditional estimation methods, i.e. least squares method and robust M-estimation.
Źródło:
Polish Maritime Research; 2017, 2; 3-12
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Navigation security module with real-time voice command recognition system
Autorzy:
Yagimli, M.
Kursat-Tezer, H.
Powiązania:
https://bibliotekanauki.pl/articles/258920.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
maritime navigation
LPC
MFCC
DTW
voice command recognition
Opis:
The real-time voice command recognition system used for this study, aims to increase the situational awareness, therefore the safety of navigation, related especially to the close manoeuvres of warships, and the courses of commercial vessels in narrow waters. The developed system, the safety of navigation that has become especially important in precision manoeuvres, has become controllable with voice command recognition-based software. The system was observed to work with 90.6% accuracy using Mel Frequency Cepstral Coefficients (MFCC) and Dynamic Time Warping (DTW) parameters and with 85.5% accuracy using Linear Predictive Coding (LPC) and DTW parameters.
Źródło:
Polish Maritime Research; 2017, 2; 17-26
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The ships navigation system for the XXI century
System nawigacji okrętu w XXI wieku
Autorzy:
Urbański, J.
Morgaś, W.
Czaplewski, K.
Powiązania:
https://bibliotekanauki.pl/articles/374978.pdf
Data publikacji:
2008
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
nawigacja morska
system nawigacyjny
transport morski
e-nawigacja
maritime navigation
navigation system
maritime transport
e-navigation
Opis:
This paper discusses the necessity of further fast development of the new ship's navigation system for XXI century. The main issues constituting the subject of this paper have been presented.
W artykule przedstawiono konieczność dalszego szybkiego rozwoju nowego systemu nawigacji okrętu XXI wieku. Zaprezentowano główne problemy dotyczące tematu artykułu.
Źródło:
Transport Problems; 2008, 3, 2; 45-49
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SNR of EGNOS satellites in Southern Baltic area
Autorzy:
Makar, A.
Powiązania:
https://bibliotekanauki.pl/articles/224414.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
maritime navigation
navigational systems
EGNOS
satellite positioning
satellite navigation
DGPS
satellite geodesy
Opis:
Introduction to using EGNOS system made possible determining of position in navigation and measurement applications. High accuracy of determined position, at precision of system DGPS level, allowed for taking advantage of that system in hydrographic measurements. In article are presented observations from signals transmitted by EGNOS system satelIites in 2005, in the middle of operation activating, to protecting of hydrographic measurements at sea and inland areas.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 281-285
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrity aspects in presentation of ships position in onborad information systems
Autorzy:
Uriasz, J.
Powiązania:
https://bibliotekanauki.pl/articles/225654.pdf
Data publikacji:
2010
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
nawigacja morska
pokładowe systemy informatyczne
maritime navigation
onboard information systems
Opis:
Electronic Chart Display and Information System became nowadays the main equipment for presentation of marine ship's position and perform of basic navigational tasks. There are new information systems under development like Marine Decision Support System. All systems require constant information about position of own ship and other objects in the vicinity. Information is gathered from onboard navigational systems. Integrity of that information is crucial for taking its full advantage and presentation in onboard information systems.
Źródło:
Reports on Geodesy; 2010, z. 1/88; 55-59
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maritime navigation initiatives at EU level
Autorzy:
Dyrcz, C.
Morgaś, W.
Kopacz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/225561.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
Unia Europejska
nawigacja morska
żegluga morska
European Union
sea navigation
maritime navigation
Opis:
In this paper, an attempt has been made to present the most important issues regarding the maritime navigation affairs in the European Union. The authors' main objective is to show the place and relations of maritime navigation to the basie maritime affairs and activities, especially maritime navigation activities and affairs. Authors have tried to show the main institutions and services of the European Union dealing with the maritime navigation affairs as well as characterize the activities of these Directorates'-General of the EU whose activities are very closely connected with the maritime navigation affairs.
Źródło:
Reports on Geodesy; 2009, z. 2/87; 121-127
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positioning with interactice navigational structure implementation
Autorzy:
Czaplewski, K.
Powiązania:
https://bibliotekanauki.pl/articles/320611.pdf
Data publikacji:
2004
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
infrastruktura nawigacyjna
nawigacja morska
pozycjonowanie
navigational infrastructure
maritime navigation
positioning
Opis:
The most essential outcome of theoretical studies and selected numerical analyses, presented in this work, are the suggestions related to the technology of producing and working out the results of observations, carried out in the Interactive Navigational Structures. Implementing such a Structure into navigation practice will enable supporting the positioning process by taking use of objects, which until present, in classic navigation, have been omitted due to a lack of information about their coordinates. Establishing and dynamic developing the Interactive Navigational Structures is of special importance, in case the available positioning systems appear insufficient (e.g. in submarine navigation or any work of special character). IANS can be based on various systems and navigational observations, including the satellite GPS systems. Selection of an observational model, accommodated to any current navigational situation, is simplified owing to the decisive functions, recommended in the work; applying the above functions, in conjunction with the functions of attenuation, has resulted in making more efficient the process of estimation, robust for out-lying observations. Due to diversity of the observations sets and the "by stages" way of working them out, the estimation is of sequential character (sequential robust estimation). The adjustment task, formulated and resolved in this work, has been related to the method and adjusted to the IANS chain being under development. The fundamental elements of this task's function of target are, the suggested in the work, the equivalent-decisive covariance matrix and equivalent-decisive weights matrix, both connected by statistical model. The method of identification of not only out-lying observations but also out-lying adjustment points and neutralization of an influence thereof is also advised in the work; the method has been resulted from free adjustment and M-estimation principles. The method, named hybrid M-estimation, can make a great difference specially in extreme navigation conditions, carried out basing intensely on points of the set R. The numerical tests, described in Chapter 6, refer to simulation of elementary navigational situations, connected with developing IANS and using thereof. They are to illustrate principal properties of the suggested conceptions. The results of the first of the tests have confirmed a possibility of taking use of the recommended structures in some special tasks of navigation at sea. Extremely interesting properties (the second test), first of all those of robust character, were revealed by hybrid M-estimation. The obtained results have proved that there is a chance to carry out reliable navigation, being compelled only to applying of IANS. The presented conceptions have been basically completed in respect of the theory concerning establishing, developing and mathematical working out the Interactive Navigational Structures. However, the work is incomprehensive in regard to practical implementation of the displayed models. For example, there is a possibility to use the described structures in submarine navigation. A lack of any classic navigational systems in sea depth has been forcing to seek new solutions, as the Interactive Navigational Structure is. The above solutions may also be extensively employed in radar navigation. Radar observations are often biased with gross errors, caused by radar echo generation technique. The robust estimation, if applied in the version presented in this work, may significantly improve final determinations' standard. The recommended mathematical models and methods of their parameters evaluation are applicable to maritime navigation under a certain condition. The available at present nautical information about navigational signing elements should be complemented. All the suggested solutions may not be in today's situation fully exercised (especially hybrid M-estimation) due to a lack of information about covariance matrixes or at least about errors of determining coordinates of stable and floating navigational signs, embraced by any optional navigational system.
Źródło:
Annual of Navigation; 2004, 7; 1-119
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The determination of ship’s speed and acceleration vectors based on satellite measurements
Określanie wektorów prędkości i przyspieszenia statku na podstawie pomiarów satelitarnych
Autorzy:
Banachowicz, A.
Wolski, A.
Powiązania:
https://bibliotekanauki.pl/articles/360161.pdf
Data publikacji:
2012
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
nawigacja morska
GPS
nawigacja zintegrowana
matematyka nawigacyjna
maritime navigation
integrated navigation
navigational mathematics
Opis:
In the general case measurements performed in navigation are those of position coordinates - points on the trajectory, and trajectory derivatives - speed vector and acceleration vector. Due to the occurrence of systematic and random errors, there is no full conformity of results obtained from measurements by various navigational instruments and systems in the mathematical model of the process of navigation, as well as in specific measurement models. This study attempts to compare trajectories, speeds and accelerations determined by different measurement tools (navigational equipment and systems). The results may be used in an analysis of measurement reliability and of the correct performance of navigational systems and equipment. A comparison of various sources of information also allows to detect and identify systematic errors, so that, consequently, mathematical models of specific phenomena and processes can be verified.
W nawigacji wykonywane są pomiary współrzędnych pozycji – punkty na trajektorii oraz pochodnych trajektorii – wektor prędkości i wektor przyspieszeń. Ze względu na pojawianie się błędów systematycznych i losowych, zarówno w modelu matematycznym procesu nawigacji, jak i w poszczególnych modelach pomiarowych, nie występuje pełna zgodność wyników pomiarów wykonywanych za pomocą różnych urządzeń i systemów nawigacyjnych. W prezentowanym artykule podjęto próbę porównania trajektorii, prędkości i przyspieszeń określonych różnymi narzędziami pomiarowymi (urządzeniami i systemami nawigacyjnymi). Wyniki mogą być wykorzystane w analizie wiarygodności pomiarów oraz poprawności pracy urządzeń i systemów nawigacyjnych. Porównanie różnych źródeł informacji umożliwia również wykrycie i identyfikację błędów systematycznych, a efektem tego może być weryfikacja modeli matematycznych poszczególnych zjawisk i procesów.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 29 (101); 5-9
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Main aspects of a maritime e-navigation project
Autorzy:
Korcz, Karol
Powiązania:
https://bibliotekanauki.pl/articles/242157.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
navigation
shipping
maritime e-navigation
maritime radio communication
ship safety
Opis:
Many devices and systems, including electronic ones, are used in the operation of sea-going vessels. Fast technological development in the field of electronics, radio communications and computer science inspires the more and more new proposals for the changes of these devices and systems. The rules and scope of sea-going vessels equipment, related to ensuring their safety, are strictly regulated by the International Maritime Organization (IMO). Considering the above, several countries have submitted to the IMO-Maritime Safety Committee (MSC) a proposal to prepare a vision of a broad strategy for incorporating new technologies in a structural manner, ensuring their compatibility with already existing different navigation and communication technologies and services. The overriding goal of this strategy would be to improve the efficiency, safety and reducing the cost of the entire system, providing global coverage and applicable to all types of sea-going vessels. In response to this proposal, the MSC decided to start work on the project "Preparation of e-navigation strategy". The article presents the general concepts and goals of the e-navigation project. Priority needs of e-navigation users were also discussed. The key elements of the project are presented too. The radio communication aspects of the e-navigation project were also considered. Finally, the enavigation Strategy Implementation Plan (SIP) and its progress were presented.
Źródło:
Journal of KONES; 2019, 26, 3; 83-90
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-sensor navigational measurements fusion
Autorzy:
Banachowicz, A.
Wolski, A.
Powiązania:
https://bibliotekanauki.pl/articles/393270.pdf
Data publikacji:
2010
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
GPS
estymacja sekwencyjna
żegluga morska
navigational mathematics
sequential estimation
maritime navigation
Opis:
The method of integrating navigational parameters obtained from non-simultaneous navigational measurements is presented. The proposed algorithm of position coordinates estimation is general and includes two modes of data processing – from simultaneous and non-simultaneous measurements. It can be used in hybrid receivers of radionavigation systems integrating non-homogeneous position lines or in integrated navigation systems, particularly in receivers combining the measurements of various satellite navigation systems.
Źródło:
Archives of Transport System Telematics; 2010, 3, 1; 29-33
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operational requirements for electronic chart display and information systems (ECDIS). Risk of overreliance on ECDIS
Wymagania operacyjne dla systemów ECDIS. Ryzyko zbyt wielkiego zaufania do systemu ECDIS
Autorzy:
Weintrit, A.
Stawicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/374993.pdf
Data publikacji:
2008
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
system ECDIS
nawigacja morska
transport morski
bezpieczeństwo nawigacji
ECDIS system
maritime navigation
maritime transport
safety of navigation
Opis:
Navigating with Electronic Chart Display and Information Systems (ECDIS) is fundamentally different from navigating with paper charts. The paper is addressed to model course on training in the operational use of ECDIS. It presents problems related to the risk of over reliance on ECDIS.
Prowadzenie nawigacji opartej na systemie ECDIS zdecydowanie różni się od nawigacji prowadzonej na podstawie papierowych map nawigacyjnych. Artykuł odnosi się do modelowego kursu obsługi i wykorzystania systemu ECDIS. Prezentuje zagrożenia związane ze zbyt wielkim zaufaniem nawigatorów do systemu.
Źródło:
Transport Problems; 2008, 3, 2; 75-82
1896-0596
2300-861X
Pojawia się w:
Transport Problems
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
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