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    Wyświetlanie 1-11 z 11
    Tytuł:
    Określenie parametrów HPL I VPL z użyciem systemu wspomagania SBAS w transporcie lotniczym
    Designation the HPL and VPL parameters using SBAS augmentation system in air transport
    Autorzy:
    Krasuski, K.
    Jafernik, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/313071.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Naukowo-Wydawniczy "SPATIUM"
    Tematy:
    HPL
    VPL
    system wspomagania SBAS
    transport lotniczy
    SBAS augmentation system
    air transport
    Opis:
    Artykuł przedstawia rezultaty badań dotyczące wyznaczenia poziomów bezpieczeństwa HPL i VPL dla systemu GBAS w transporcie lotniczym. Parametry HPL i VPL zostały określone dla stacji referencyjnej REF1 na podstawie rozwiązania GPS/SBAS. Obliczenia zostały zrealizowane dla metody pozycjonowania Single Point Positioning w trybie statycznym. W artykule dokonano porównania wartości parametrów HPL i VPL ze standardami technicznymi ICAO.
    This paper presents results of research concerning to determination HPL and VPL protection levels for GBAS system in air transport. The HPL and VPL parameters were designated for REF1 reference station based on GPS/SBAS solution. The computations were executed for Single Point Positioning method in static mode. In paper, the values of HPL and VPL parameters were compared with technical standards of ICAO.
    Źródło:
    Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 6; 830-833, CD
    1509-5878
    2450-7725
    Pojawia się w:
    Autobusy : technika, eksploatacja, systemy transportowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of Ionospheric Delay for SBAS Using Spherical Harmonics Functions
    Autorzy:
    Han, D.
    Yun, H.
    Kee, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/116620.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Consequences of Delays
    Ionospheric Delay
    satellite based augmentation system (SBAS)
    Opis:
    In SBAS (satellite‐based augmentation system), it is important to estimate ionospheric delay accurately to guarantee userʹs accuracy and integrity. Grid based ionospheric models are generally used to estimate ionospheric delay for SBAS. In grid based model, SBAS broadcasts vertical ionospheric delays at the grid point, and users get their ionospheric delay by interpolating those values. Ionospheric model based on spherical harmonics function is another method to estimate ionospheric delay. This is a function based approach and spherical harmonics function is a 2‐D fourier series, containing the product of latitude dependent associated Legendre functions and the sum of the longitude dependent sine and cosine terms. Using ionospheric delay measurements, coefficients for each spherical harmonics functions are estimated. If these coefficients are known, user can reconstruct ionospheric delay. In this paper, we consider the spherical harmonics based model and propose a ionospheric delay estimation strategy for SBAS that can be used to mitigate ionospheric delay estimation error, especially in storm condition. First, coefficients are estimated under initial order and degree. Then residual errors for each measurement are modeled by higher order and degree terms, then coefficients for these terms are estimated. Because SBAS message capacity is limited, in normal condition, initial order terms are only used to estimate ionospheric delay. If ionospheric storm is detected and there is need to mitigate the error, higher order terms are also used and error can be decreased. To compare the accuracy of spherical harmonics based model with grid based model, some post‐processing test results are presented. Raw observation data is obtained from RINEX format and the root mean square(RMS) and max value of residual errors are presented.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 205-209
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An assessment of the character and usefulness of the information available on the internet about state-owned satellite navigation and satellite-based augmentation systems
    Autorzy:
    Januszewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/135444.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    satellite navigation system
    satellite based augmentation system (SBAS)
    internet
    availability
    character of information
    usefulness of information
    Opis:
    To date, a ship’s position can generally be obtained from functional satellite navigation systems (SNS), such as Global Position Systems (GPS and GLONASS), and Satellite-Based Augmentation Systems (SBAS), such as (European Geostationary Navigation Overlay Service (EGNOS), GPS-Aided Geo Augmented Navigation system (GAGAN), MTSAT Satellite Augmentation System (MSAS) and Wide Area Augmentation System (WAAS). Sometimes these systems are collectively called Global Navigation Satellite Systems (GNSS). Two more SNS, Galileo and BeiDou, one more SBAS, System for Differential Corrections and Monitoring (SDCM), and new regional systems, such as Quasi-Zenith Satellite System (QZSS) in Japan and Indian Regional Navigation Satellite System (IRNSS) in India, are also under construction. Information about all of these 11 systems is available on the internet. The number of links and the type of the information obtained from two search engines, Google and Bing, for the different keywords concerning each system are shown in the paper. Additionally, the analysis of the character and usefulness of the information placed on the pages of governmental organizations and institutions administering the above-mentioned systems, manufacturers of the satellites, receivers and different kinds of the institutional users is also provided.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 44 (116); 123-127
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Satellite and Terrestrial Radionavigation Systems on European Inland Waterways
    Autorzy:
    Januszewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/116145.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Inland Waterways
    Inland Navigation
    Satellite Radionavigation System
    Terrestrial Radionavigation system
    satellite navigation system
    Radionavigation
    satellite based augmentation system (SBAS)
    EGNOS
    Opis:
    The usefulness for all sea users of Satellite Navigation Systems (SNS), Satellite Based Augmentation Systems (SBAS) and Automatic Identification System (AIS) is well known. The possibility, actual and future, of the utilization of all these systems on European inland waterways, GPS augmented by IALA DGPS reference stations, GPS augmented by European SBAS – EGNOS from direct Signal–in–Space (SIS) and GPS augmented by EGNOS from re–transmission over AIS, is presented in this paper. The operational systems, such as the German network IALA DGPS and DoRIS, and planned system such as GALEWAT, MARGAL, MUTIS and MARUSE are described also.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 2; 121-126
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    SBAS/EGNOS enabled devices in maritime
    Autorzy:
    López, M.
    Anton, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/117186.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    accuracy
    EGNOS-Enabled Navigation
    AIS transponders
    SGNSS
    position
    Navigation and Timing (PNT)
    Satellite Based Augmentation System (SBAS)
    EGNOS
    Global Navigation Satellite System (GNSS)
    Opis:
    Nowadays, it is a fact that Global Navigation Satellite Systems (GNSS) have become the primary means of obtaining Position, Navigation and Timing (PNT) information at sea. Most of the ships in the world are equipped with GNSS receivers. And currently these users take advantage of different augmentation systems such as DGNSS or SBAS/EGNOS, as they provide an adequate answer, especially in terms of accuracy and integrity. To take advantage of this improved accuracy, direct access to EGNOS in vessels can be achieved through EGNOS-enabled navigation receivers and EGNOS-enabled AIS transponders. Therefore, the natural question is: Are those GNSS receivers SBAS (EGNOS) enabled? In most cases they are; SBAS is being used. This paper provides an analysis of the number of onboard devices, mainly devoted to navigation purposes and AIS transponders, which are SBAS compatible.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 23-27
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Future egnos APV procedures implementation in Poland as a chance for small and medium airports development
    Implementacja procedur EGNOS APV w Polsce szansą rozwoju małych i średnich portów lotniczych
    Autorzy:
    Kaleta, W. Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/952873.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
    Tematy:
    EGNOS
    satellite based augmentation system (SBAS)
    Approach with Vertical Guidance
    signal in space
    Satelitarne Systemy Wspomagające
    Podejście z Prowadzeniem Pionowym
    SIS
    Opis:
    This paper presents original researches and analysis of EGNOS (European Geostationary Navigation Overlay Service) due to readiness for Approach Procedures with Vertical Guidance (APV) implementation and development for small and medium airports on Polish territory according to present situation in the western part of Europe. Improving safety, availability, usefulness and cost-effectiveness for aviation transport sector. This work carries out a detailed analysis of the parameters describing and characterizing each augmentation navigational satellites system: accuracy, integrity, continuity and availability. Faults has been pointed out and shortcomings of EGNOS factors according to improvement air transport safety in the most sensitive landing phases. The validated Approach Procedures with Vertical Guidance, using Satellite-Based Augmentations System is paving the way for flying Instrument Landing System type approaches to small and medium airports in the western part of Europe independently of groundbased infrastructure. The instrument APV procedures consists of four phases of flight: Initial Approach, Intermediate Approach, Final Approach and Missed Approach – parts of approach segments. SBAS (Satellite Based Augmentation System) seems to be the first satellite based system that can support FAS (Final Approach Segment) which is the most “sensitive”, important and dangerous part of the instrumental approach procedures based on aircraft’s avionics equipment most time without vertical and horizontal visibility. EGNOS augments the GPS system in order to meet the necessary: accuracy, integrity, availability, continuity envisaged for APV procedures [9]. APV procedure based on EGNOS system is recently the only low-cost chance for small and medium Polish airports development in the aviation transport sector, according to extension and improving augmentation system factors mentioned above.
    W artykule przedstawione zostały oryginalne badania i analiza system EGNOS (European Geostationary Navigation Overlay Service) w odniesienu do implementacji i rozwoju Procedur Podejścia do Lądowania z Prowadzeniem Pionowym w małych i średnich portach lotniczych na terenie Polski, biorąc pod uwagę stan w Europie Zachodniej. Poprawiając tym samym bezpieczeństwo, dostępność, użytkowość i koszty eksploatacji w sektorze transport powietrznego. Praca ta przedstawia dokładną analizę czynników opisujących każdy system wspomagania satelitarnego: dokładność, wiarygodność, ciągłość I dostępność. Niedoskonałości systemu zostały przedstawione w odniesieniu do poprawy bezpieczeństwa transportu powietrznego w najdelikatniejszej fazie lotu – podejścia do lądowania. Powyższa procedura z wykorzystaniem system wspomagającego otwiera szansę rozwoju małym i średnim portom lotniczym w Europie Zachodniej uniezależniając podejście do lądowania od infrastruktury lotniskowej. Podejście instrumentalne APV składa się z czterech faz lotu: Podejście Początkowe, Podejścia Pośredniego, Podejścia Końcowego, Odlotu po Nieudanym Podejściu. System wspomagania satelitarnego, jako pierwszy wspomóc może także fazę Podejścia Końcowego, która jest najniebezpieczniejszą, najważniejszą fazą opartą na urządzeniach pokładowych w większości bez widoczności terenu. EGNOS wspomaga działanie GPS poprawiając niezbędne czynniki: dokładność, wiarygodności, dostępności, ciągłości przewidzianych w procedurach APV. Podejście oparte o EGNOS jest jedyną, niedrogą szansą dla małych i średnich polskich portów lotniczych, na rozwój w sektorze transportu powietrznego w nawiązaniu do rozszerzenia i poprawy czynników wyżej wymienionych.
    Źródło:
    Prace Instytutu Lotnictwa; 2015, 3 (240); 18-26
    0509-6669
    2300-5408
    Pojawia się w:
    Prace Instytutu Lotnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    GNSS for an Aviation Analysis Based on EUPOS and GNSS/EGNOS Collocated Stations in PWSZ CHELM
    Autorzy:
    Fellner, A.
    Cwiklak, J.
    Jafernik, H.
    Trominski, P.
    Zajac, J.
    Banaszek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/117333.pdf
    Data publikacji:
    2008
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite System (GNSS)
    aviation
    EGNOS
    satellite based augmentation system (SBAS)
    geographic information system (GIS)
    Global Positioning System GPS
    ICAO Requirements
    Air Navigation
    Opis:
    Under the umbrella of PWSZ Chelm, taking account of future implementation of navigation using EUPOS and GNSS based on EGNOS several planned actions were carried out in the 2005-2006. The actions in particular contribute to: 1. ICAO and EGNOS requirements and coverage area (Chelm Town located near Polish-Ukrainian border is also at the east border of planned EGNOS coverage for ECAC states). 2. Preparatory activities to establishing the EUPOS station in PWSZ Chelm. Cooperation of PWSZ Chelm and ULC (Polish Aviation Regulator) in the frame of conventional NAV aids use and GNSS implementation in aviation. 3. Analysis of ICAO requirements and methods of testing SIS (Signal In Space) needed to certify GNSS in Poland for use for an aviation. 4. Preparatory activities to establishing the EGNOS SIS monitoring station based on EUROCONTROL Pegasus software and GNSS/EGNOS receiver Septentrio PolaRx2e. 5. Analysis of methods for exchange of information between EUPOS and EGNOS SIS station to initiate the application of satellite positioning systems to air navigation in Poland. The project EUPOS is a European initiative aiming at establishment of a uniform DGNSS (Differential Global Navigation Satellite System) basis infrastructures in Central and Eastern European countries including Chelm Town where PWSZ is localized playing vital role in GIS/GNSS implementation in the region and Polish aviation.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 4; 351-356
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    GNSS for an Aviation
    Autorzy:
    Grzegorzewski, M.
    Cwiklak, J.
    Jafernik, H.
    Fellner, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117124.pdf
    Data publikacji:
    2008
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite System (GNSS)
    Air Navigation
    Aviation, Global Positioning System (GPS)
    Aircraft-Based Augmentation System (ABAS)
    satellite based augmentation system (SBAS)
    Ground-Based Augmentation System (GBAS)
    EGNOS
    Opis:
    In Polish aviation on-board GPS units are used for enroute procedures mainly. The use of GNSS for approach and landing procedures requires overcoming a lot of obstructions, including both organizational and technical ones. The paper presents information connecting with GNSS implementation in aviation.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 4; 345-350
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Galileo Integrity Concept and its Applications to the Maritime Sector
    Autorzy:
    Hernández, C.
    Catalán, C.
    Martínez, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116833.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite System (GNSS)
    Galileo
    Maritime Sector
    Signal-In-Space Accuracy (SISA)
    marine navigation
    satellite based augmentation system (SBAS)
    Galileo Integrity
    Signal In Space Monitoring Accuracy (SISMA)
    Opis:
    Galileo is the European Global Navigation Satellite System, under civilian control. Galileo will provide their users with highly accurate global positioning services and their associated integrity information. The main objective of this article is to explain the basis of the Galileo integrity concept, which is fundamental for safety-critical applications such as maritime navigation. A review of the expected performance that will be achieved has been also included.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 287-291
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Presentation of Satellite Based Augmentation System integrity data in an Electronic Chart System display
    Autorzy:
    Zalewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/135348.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    ECS
    GNSS
    SBAS
    Integrity Data
    MVPA
    HPL
    Opis:
    We propose a Marine Vessel Protection Area (MVPA) model as the means of satellite-based augmentation system (SBAS) integrity data presentation in an electronic chart system (ECS) display. The model takes into account several factors that influence the shape and dimensions of the MVPA. These factors include GNSS signal aspects, where measurement errors depend on the geometry of visible satellites and the signal propagation, the ship’s size, the ship’s heading and its estimated accuracy, position of the GNSS/SBAS antenna relative to the ship’s hull, and SBAS integrity data. The resultant safety contour or domain can be displayed within the ECS or ECDIS as a graphical representation of the marine ship position and the protection level of the electronic position/course fixing equipment, equivalent to the horizontal protection level (HPL) used in aviation.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 150-156
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evolution of SBAS/EGNOS enabled devices in maritime
    Autorzy:
    López, M.
    Antón, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063971.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    EGNOS
    navigation and timing
    Global Navigation Satellite Systems
    satellite-based augmentation systems
    dynamic positioning
    Portable Pilot Unit
    Automatic Identification System
    advanced maritime technologies
    Opis:
    The maritime sector was one of the first communities that recognized and exploited the opportunities and advantages provided by Global Navigation Satellite Systems (GNSS). In fact, GNSS have become the primary means of obtaining Position, Navigation and Timing (PNT) information at sea. Most of the ships in the world are equipped with GNSS receivers. GPS provides the fastest and most accurate method for mariners to navigate, measure speed, and determine location. However, its performance can be enhanced by taking advantage of augmentation systems such as differential GNSS or Satellite-Based Augmentation Systems (SBAS/EGNOS), especially in terms of accuracy. Direct access to EGNOS in vessels can be achieved through EGNOS-enabled navigation receivers and EGNOS-enabled AIS transponders. This paper provides an analysis of the number of onboard devices, mainly devoted to navigation purposes, and AIS transponders which are SBAS compatible. In addition, other equipment using GNSS positioning in the maritime and inland waterways domains are also considered for the analysis of SBAS compatibility, including inland AIS, Portable Pilot Units (PPUs) and Dynamic Positioning (DP) equipment. A first survey was done in 2017 to have an overview of the percentage of SBAS enabled devices available in the maritime market [8]. Since then, the analysis has been yearly updated to understand the market evolution in terms of SBAS compatibility and its main results are summarised in this paper.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 543--549
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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