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    Tytuł:
    Concept for the Construction and Application of a Counter-UAV Defence System
    Koncepcja budowy i wykorzystania systemu zwalczania BSL
    Autorzy:
    Wojtyra, Damian
    Wacławik, Kamil
    Krenc, Ksawery
    Długoń, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/1837965.pdf
    Data publikacji:
    2021
    Wydawca:
    Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
    Tematy:
    anti-aircraft system
    anti-UAV warfare
    automatic tracking
    system przeciwlotniczy
    zwalczanie BSL
    śledzenie automatyczne
    Opis:
    This paper describes a concept for the construction and application of the Counter-UAV Defence System as developed by the Polish consortium of Zakłady Mechaniczne “Tarnów” S.A. (ZMT) and Military University of Technology (MUT). The article describes a system designed to counteract unmanned aerial vehicles, which consists of a multi-barrel machine gun and a radiolocation system. The Counter-UAV Defence System enables the combating of aerial targets, including unmanned aerial vehicles (UAVs).
    W artykule opisano koncepcję budowy i wykorzystania systemu zwalczania BSL realizowanego przez konsorcjum ZM Tarnów i WAT. Artykuł opisuje system przeznaczony do przeciwdziałania bezzałogowym statkom latającym, który złożony jest z wielolufowego karabinu maszynowego i systemu radiolokacji. System umożliwia automatyczne zwalczanie obiektów powietrznych, w tym Bezzałogowych Statków Powietrznych.
    Źródło:
    Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2021, 12, 1 (43); 87-100
    2081-5891
    Pojawia się w:
    Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulator for the RS operator using visual depiction
    Symulator dla operatora RS wykorzystujący zobrazowanie wizyjne
    Autorzy:
    Przybylski, M.
    Hass, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/223129.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
    Tematy:
    RS operator simulator
    visual depiction
    automatic tracking
    symulator operatora RS
    zobrazowanie wizyjne
    automatyczne śledzenie
    Opis:
    The high operational cost of exploitation of armaments in near-battle conditions and numerous restrictions in use of the battle equipment in places of permanent deployment have contributed to seek new training methods. In recent years, there has been a rapid development of simulators used in the process of education and in-service training associated with the technological advancement and the modernization of the armed forces of the Republic of Poland. In this article, an experimental model of the simulator was introduced for the operator of manual tracking (RS) using a visual system. This model was built by the authors as part of their master’s thesis. It allows either manual or automatic tracking of targets against the simulated background and gives a grade to the operator based on the accuracy achieved while tracking the target. The solution suggested by the authors may raise the effectiveness of training of operators using television-optical systems, as well as reduce the associated operating costs of the weaponry.
    Wysokie koszty eksploatacji uzbrojenia w warunkach zbliżonych do bojowych i liczne ograniczenia w użyciu sprzętu bojowego w miejscach stałej dyslokacji przyczyniły się do poszukiwania nowych metod szkolenia. W ostatnich latach nastąpił dynamiczny rozwój symulatorów wykorzystywanych w procesie kształcenia i doskonalenia zawodowego związany z postępem technologicznym oraz modernizacją Sił Zbrojnych RP. W artykule przedstawiono model doświadczalny symulatora dla operatora ręcznego śledzenia (RS) wykorzystujący system wizyjny. Model ten został zbudowany przez autorów w ramach ich prac magisterskich. Umożliwia on ręczne lub automatyczne śledzenie celów na pozorowanym tle oraz wystawienie oceny operatorowi na podstawie osiągniętej dokładności podczas śledzenia celu. Zaproponowane rozwiązanie może podnieść efektywność szkolenia operatorów korzystających z systemów telewizyjno-optycznych oraz obniżyć związane z tym koszty eksploatacji uzbrojenia.
    Źródło:
    Zeszyty Naukowe Akademii Marynarki Wojennej; 2017, R. 58 nr 3 (210), 3 (210); 87-95
    0860-889X
    Pojawia się w:
    Zeszyty Naukowe Akademii Marynarki Wojennej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Concept for the Construction and Application of a Counter-UAV Defence System
    Koncepcja budowy i wykorzystania systemu zwalczania BSL
    Autorzy:
    Wojtyra, Damian
    Wacławik, Kamil
    Krenc, Ksawery
    Długoń, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/1837977.pdf
    Data publikacji:
    2021
    Wydawca:
    Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
    Tematy:
    anti-aircraft system
    anti-UAV warfare
    automatic tracking
    system przeciwlotniczy
    zwalczanie BSL
    automatyczne śledzenie
    Opis:
    This paper describes a concept for the construction and application of the Counter-UAV Defence System as developed by the Polish consortium of Zakłady Mechaniczne “Tarnów” S.A. (ZMT) and Military University of Technology (MUT). The article describes a system designed to counteract unmanned aerial vehicles, which consists of a multi-barrel machine gun and a radiolocation system. The Counter-UAV Defence System enables the combating of aerial targets, including unmanned aerial vehicles (UAVs).
    W artykule opisano koncepcję budowy i wykorzystania systemu zwalczania BSL realizowanego przez konsorcjum ZM Tarnów i WAT. Artykuł opisuje system przeznaczony do przeciwdziałania bezzałogowym statkom latającym, który złożony jest z wielolufowego karabinu maszynowego i systemu radiolokacji. System umożliwia automatyczne zwalczanie obiektów powietrznych, w tym Bezzałogowych Statków Powietrznych.
    Źródło:
    Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2021, 12, 1 (43); 87-100
    2081-5891
    Pojawia się w:
    Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical Model of the Surveillance, Tracking and Fire Control System of the Short-Range ADGM System
    Model matematyczny systemu obserwacji, śledzenia i kierowania ogniem PZRA krótkiego zasięgu
    Autorzy:
    Zygmunt, Bogdan
    Sienicki, Konrad
    Wojtyra, Damian
    Powiązania:
    https://bibliotekanauki.pl/articles/403298.pdf
    Data publikacji:
    2019
    Wydawca:
    Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
    Tematy:
    automatics
    mathematical model
    anti-air system
    automatic tracking
    automatyka
    model matematyczny
    zestaw przeciwlotniczy
    automatyczne śledzenie
    Opis:
    The paper presents the development and simulation of a mathematical model of an automatic tracking and fire control system. The authors focused on very short-range air defense (VSHORAD) gun/missile systems.
    W artykule przedstawiono opracowanie i symulację modelu matematycznego systemu automatycznego śledzenia i kierowania ogniem. Autorzy skupili się na przeciwlotniczych zestawach rakietowo-artyleryjskich krótkiego zasięgu.
    Źródło:
    Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2019, 10, 1 (35); 49-58
    2081-5891
    Pojawia się w:
    Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A maintenance-free solution for optical frequency transfer
    Autorzy:
    Włodarczyk, Przemysław
    Krehlik, Przemysław
    Śliwczyński, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/220794.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fiber-optics
    optical frequency transfer
    tracking filter
    automatic startup
    Opis:
    This paper focuses on automatic locking of tracking filters used in optical frequency transfer systems. General concept of such a system is briefly described and the problems with its automatic startup, originating in the use of the analog phase locked loop to filter weak, received signal, are discussed. A supervisory circuitry and algorithm to solve these problems is proposed. The frequency of the signal to be filtered is measured indirectly and the output frequency of the tracking filter is monitored. In the case of lack of synchronism (i.e. after the startup) a significant difference of these frequencies is measured and the supervisory algorithm forces the filter to tune into the right frequency and then allows it to synchronize. A system with the proposed solution was implemented and tested experimentally on a fiber optic link with high attenuation and multiple optical connectors. Transient signals during locking were recorded to investigate the system’s behavior in real environment. The system was evaluated in the link causing synchronization losses every 17 min on average. During measurements over 3 days, the whole system was synchronized for over 99.98% of time despite these difficult conditions.
    Źródło:
    Metrology and Measurement Systems; 2020, 27, 3; 441-450
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Automatic estimation of the brightness changes for background suppression methods used for video tracking of vehicles
    Autorzy:
    Okarma, K.
    Mazurek, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/393475.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    analiza obrazów
    video śledzenie
    automatyczna estymacja
    image analysis
    video tracking
    automatic estimation
    Opis:
    One of the typical distortions in the background estimation methods is a change of lighting conditions, since each such change influences on the luminance of pixels in the captured images, which may be classified as the background. The global changes are relatively easy to compensate, but in practical applications the character of most of such changes is rather local. These changes may be caused e.g. by clouds, moving large objects, street lamps etc. Nevertheless, their influence on the results of the background estimation should be reduced therefore a local adaptive correction algorithm, applied as the pre-processing step, is proposed in the paper, assuming known geometrical configuration of the observed road
    Źródło:
    Archives of Transport System Telematics; 2012, 5, 4; 17-20
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    PER Estimation of AIS in Inland Rivers based on Three Dimensional Ray Tracking
    Autorzy:
    Ma, F.
    Chu, X. M.
    Liu, C. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/117153.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Ray Tracking
    Three Dimensional Ray Tracking
    Automatic Identification System (AIS)
    Package Error Rate (PER)
    Chinese Navigable Waterways
    Inland Shipping
    PER Estimation
    Ray Tracking Model
    Opis:
    The Automatic Identification System (AIS) is an important maritime safety device, which is populous in inland rivers. Compared with that in open sea, the Package Error Rate (PER) of AIS in inland river has increased sharply due to its complex environment. With the help of hardware in loop simulation, it is possible to make statistical calculation on the PER under a given field strength and describe the data by quadratic rational fraction. Meanwhile, in the three dimensional software environments, the signal field strength is able to be calculated by the ray tracking method, which exhausts all the possible propagation paths, including direct way, reflection, diffractions, and the other medium attenuation matters. Beyond that, in the model, the propagation geography information in inland rivers is required to be simplified in some way, or the computation of the ray tracking is too hard to get. The paper set the Changjiang Wuhan channel as the field testing region, and all the deviations are less than 5% in sunny weather, which proves the method accurate and effective.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 89-94
    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:
    Satellite-based AIS and its Comparison with LRIT
    Autorzy:
    Cheng, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/117541.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Automatic Identification System (AIS)
    Long Range Identification and Tracking (LRIT)
    Satellite-Based AIS
    Navigational Tools
    Radiocommunication
    Monitoring Coverage
    communication scheme
    Identification System
    Opis:
    The satellite-based Automatic Identification System (AIS) system has continuously been developed by the shipping industry in recent years. This paper introduces the satellite-based AIS including the concept, the system structure, the development and its new applications. The Long Range Identification and Tracking (LRIT) system, which is mandatory to be required on certain classes of ships engaged on international voyages to report their position at least every six hours using onboard communication means however, has similar kind of function of ship monitoring with the satellite-based AIS system. Based on the basic introduction of the LRIT system, this paper presents the comprehensive comparison between satellite-based AIS and LRIT in terms of the ship’s cost, the communication scheme, the monitoring coverage, the information details and the information creditability. The conclusion that the satellite-based AIS should be encouraged to effectively play a complement role to the LRIT system is advanced in the paper.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 2; 183-187
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A ship manoeuvring desktop simulator for developing and validating automatic control algorithms
    Autorzy:
    He, H.
    Lataire, E.
    Zwijnsvoorde, T. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/24201421.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    automatic control
    optimal tracking algorithms
    manoeuvring simulator
    anti-collision maneuvering
    autonomous ship controller
    model predictive control
    waypoint path controller
    authonomy of ships
    Opis:
    This paper presents a user‐friendly simulator developed based on Windows Forms and deployed as a test bed for validating automatic control algorithms. The effectiveness of some of the integrated track controllers has been tested with free running experiments carried out in the Towing Tank for Manoeuvres in Shallow Water in Ostend, Belgium. The controllers enable a ship to follow predefined random paths with high accuracy. Ship‐to‐ship interaction is considered in some cases. Simulator environments provide useful tools for extending the number of validation scenarios, supplementing the work performed in the towing tank. The simulator is presented with a graphical user interface, aiming at providing a good user experience, numerous test scenarios and an extensively‐validated library of automatic control algorithms. With the usage of the simulator, further evaluation of developed control algorithms by implementing extensive test runs with different ships and waterways could be made. Case studies are shown to illustrate the functionality of the simulator.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 607--616
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tracking control and robustness study of shifting process
    Autorzy:
    Zhao, X.
    Guan, Ch.
    Powiązania:
    https://bibliotekanauki.pl/articles/223502.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    heavy vehicles
    automatic transmission
    shift quality
    PID tracking control
    Monte Carlo method
    pojazdy ciężkie
    skrzynia automatyczna
    zmiana wytrzymałości
    proces kontroli
    metoda Monte Carlo
    Opis:
    Heavy dump vehicles are usually working with big load changes and bad work environment, thus change the friction performance of transmission clutches, as well as great affect the shift quality seriously, which influence the vehicle performance. Many researchers developed a lot to design a useful automatic transmission control system. Using PID tracking control and Monte Carlo method, the controller based on an dynamic model was set up to analyze the shifting process of automatic transmission and its robustness in this paper. The shift process was divided into four stages, low-gear phase, torque phase, inertia phase and high-gear phase. The model presents the process from the first gear to the second gear when the torque has big change. Since the jerk and the friction work of clutch are both related to the speed of clutch which was easier to control, it was chose as the target to control the oil pressure for satisfying the requirement of shift quality. The simulation software, Maplesim and Simulink, were used to build the vehicle model and shifting controller for simulation under different working conditions, and the maximum jerk was changed from 34 m/s3 to 12 m/s3 after the optimization. In this paper the Monte Carlo has been used to quantize and evaluate the robustness of the closed-loop system for the friction coefficients and output torque of turbine variation leading by the friction feature parameters and throttle angle changed. Monte Carlo method was used to analyze the effectiveness and robustness of PID controller, which proves that it has good control effect when the throttle is ongoing minor fluctuations. When the throttle is full opening, a quadratic optimal controller based on disturbance is designed by the method of multi-objective optimization. When it changes within 20 percent, PID controller was designed under the guidance of tracking thoughts. The results also show that the controller could still obtain better effect when the friction coefficient ranged from -40 % to 40 % as well as engine torque changed from -20 % to 20 %, which indicates the robustness of controller.
    Źródło:
    Archives of Transport; 2018, 46, 2; 97-104
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Automatic Identification System on Safety of Navigation at Sea
    Autorzy:
    Stupak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/117256.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    marine navigation
    Automatic Identification System (AIS)
    safety at sea
    Safety of Navigation
    Gulf of Gdansk
    vessel traffic service (VTS)
    Radar Target
    Radar Tracking
    Opis:
    Detection of small crafts/targets, in particular, sailing yachts with the ship's radar is not always possible. Radar reflectors are used to improve their detection. The AIS (Automatic Identification System) transmits position, motion vector and identification signals of a vessel to other ships and VTS (Vessel Traffic Services) centers . This system significantly increases the possibility to detect small crafts. The paper presents results of comparative study of using information from the Automatic Identification System and from radar to determine the accuracy of tracking the position and motion vector of ships in the Gulf of Gdansk. Possibilities and limitations of the AIS are also presented.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 337-341
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Alternative maritime satellite solutions for enhanced GMDSS network
    Autorzy:
    Ilcev, D. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2172508.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    International Maritime Organization
    Global Maritime Distress and Safety System
    Maritime Global Ship Tracking
    Maritime GNSS Augmentation Satellite Data Link
    Satellite Data Link
    Integrated Radio-Automatic Identification System
    International Mobile Satellite Organization
    Opis:
    In this paper are introduced alternative architectures for the novel development of the enhanced Global Maritime Distress and Safety System (GMDSS) satellite communication network and equipment within the Gostationary Erath Orbits (GEO and Non-GEO satellite constellations. Since its founding in 1959, the International Maritime Organization (IMO) and its member states, in close co-operation with the International Telecommunication Union (ITU) and other international organizations, notably the World Meteorological Organization (WMO), the International Hydrographic Organization (IHO), the International Mobile Satellite Organization (IMSO) and Cospas-Sarsat partners, have striven to improve maritime distress and safety radio and satellite communications, as well as general communications for operational and personal purposes. This paper also reviews the principal concept of the GMDSS network, an overview of existing LRIT and maritime Integrated Radio-Automatic Identification System (R-AIS) and Satellite-AIS (S-AIS) networks. In addition, new proposed by author networks of the Satellite Data Link (SDL), Maritime GNSS Augmentation Satellite Data Link (GASDL), Maritime Global Ship Tracking (GST), and Maritime Satellite Automatic Dependent Surveillance-Broadcast (SADS-B) are also described in this paper.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 2; 267--272
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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