Temat: GPS positioning - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Korean WA-DGNSS User Segment Software Design
Autorzy:: Shah, S. T.
Choi, W.S.
Han, W.Y.
Yun, H.
Kee, C.
Powiązania:: https://bibliotekanauki.pl/articles/116066.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: global navigation satellite system (GNSS)
Global Positioning System GPS
User Segment
GPS Data Processing Classes
Opis:: Korean WA‐DGNSS is a large scale research project funded by Ministry of Land, Transport and Maritime Affairs Korea. It aims to augment the Global Navigation Satellite System by broadcasting additional signals from geostationary satellites and providing differential correction messages and integrity data for the GNSS satellites. The project is being carried out by a consortium of universities and research institutes. The research team at Electronics and Telecommunications Research Institute is involved in design and development of data processing softwares for wide area reference station and user segment. This paper focuses on user segment software design. Korean WA‐DGNSS user segment software is designed to perform several functions such as calculation of pseudorange, ionosphere and troposphere delays, application of fast and slow correction messages, and data verification. It is based on a layered architecture that provides a model to develop flexible and reusable software and is divided into several independent, interchangeable and reusable components to reduce complexity and maintenance cost. The current version is designed to collect and process GPS and WADGNSS data however it is flexible to accommodate future GNSS systems such as GLONASS and Galileo.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 1; 69-74
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Global Positioning System: Political Support, Directions of Development, and Expectations
Autorzy:: Czaplewski, K.
Powiązania:: https://bibliotekanauki.pl/articles/116087.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Global Navigation Satellite Systems (GNSS)
Selective Availability
Global Positioning System GPS
Political Support
Positioning
Navigation and Timing (PNT)
GPS management
GPS modernization
PNT Advisory Board
Opis:: Over the last decade the Global Positioning System has become a global, multifunctional tool which provides services that are an integral part of U.S. national security as well as the security of other highly developed countries. Economic development, transport security as well as homeland security are important elements of the global economic infrastructure. In 2000 the United States acknowledged the growing significance of GPS for civilian users and stopped intentionally degrading accuracy for non-military signals that are known as “Selective Availability”. Since then, commercial applications of satellite systems have been proliferating even more rapidly, and therefore, their importance in everyday life has greatly increased. Currently, services that depend on information obtained from the Global Positioning System are the driving force behind economic growth, economic development and the improvement in life safety. This economic development would not be possible without the financial and political support of the US government to maintain the operation of the GPS system. Therefore it is important to have knowledge about the intentions of the US government how system GPS will be developed in the future. Decisions taken in the last 3 months are the subject of this article.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 2; 229-232
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Wykorzystanie danych GPS w przeciwlotniczych zestawach artyleryjsko-rakietowych na przykładzie odbiornika LASSEN iQ firmy Trimble
Application of GPS data in anti-aircraft systems using LASSEN iQ receiver of Trimble firm as example
Autorzy:: Borowczyk, W.
Kaczmarek, W.
Powiązania:: https://bibliotekanauki.pl/articles/211086.pdf
Data publikacji:: 2007
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:: system satelitarny GPS
protokoły transmisji danych GPS
system czasu rzeczywistego QNX Nautrino
Global Positioning System GPS
TSIP and NMEA protocols
QNX Nautrino
Opis:: W artykule przedstawiono zagadnienie wykorzystania danych z odbiornika GPS w przeciwlotniczych zestawach artyleryjsko-rakietowych wyposażonych w obecnie wdrażany celownikCP-1 i odbiornik GPS Lassen iQ firmy Trimble. Omówiono zasadę odbierania i dekodowania danych dla przypadku wykorzystania w systemie protokołu binarnego TSIP (Trimble Standard Interface Protocol). Ponadto opisano zasady funkcjonowania procesu odbierania danych w systemie czasu rzeczywistego QNX Nautrino.
In this paper the TSIP (Trimble Standard Interface Protocol) and NMEA (National Marine Electronics Association) protocols, and the way of application of the normal coordinates system in NATO were presented. Moreover, the authors have shown how the information from GPS system is exploited in CP-1 (anti-aircraft sight).
Źródło:: Biuletyn Wojskowej Akademii Technicznej; 2007, 56, 4; 123-135
1234-5865
Pojawia się w:: Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: A Matlab Implementation of Differential GPS for Low-cost GPS Receivers
Autorzy:: Ali, Q
Montenegro, S.
Powiązania:: https://bibliotekanauki.pl/articles/116127.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: marine navigation
Global Positioning System GPS
Matlab, Differential GPS (DGPS)
GPS Receiver
unmanned aerial vehicle (UAV)
Global Navigation Satellite System (GNSS)
RINEX Format
Opis:: A number of public codes exist for GPS positioning and baseline determination in off-line mode. However, no software code exists for DGPS exploiting correction factors at base stations, without relying on double difference information. In order to accomplish it, a methodology is introduced in MATLAB environment for DGPS using C/A pseudoranges on single frequency L1 only to make it feasible for low-cost GPS receivers. Our base station is at accurately surveyed reference point. Pseudoranges and geometric ranges are compared at base station to compute the correction factors. These correction factors are then handed over to rover for all valid satellites observed during an epoch. The rover takes it into account for its own true position determination for corresponding epoch. In order to validate the proposed algorithm, our rover is also placed at a pre-determined location. The proposed code is an appropriate and simple to use tool for post-processing of GPS raw data for accurate position determination of a rover e.g. Unmanned Aerial Vehicle during post-mission analysis.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 343-350
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Modernization of Maritime DGPS in Poland
Autorzy:: Dziewicki, M.
Powiązania:: https://bibliotekanauki.pl/articles/116983.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Global Navigation Satellite System (GNSS)
Differential GPS (DGPS)
Global Positioning System GPS
IMO Requirements
IALA Recommendations
e-Navigation
Maritime DGPS
Radionavigation
Opis:: Some new techniques and functionality adopted for modernization of national DGPS systems by maritime administrations in Europe are presented. Any solution adopted must meet international requirements: IMO standards and IALA e-NAV Committee recommendations. The results of DGPS Re-capitalization Meeting in Gdynia 2008 are presented. Modernization and re-engineering of maritime DGPS must take into account backward compatibility with existing onboard receivers as well as future trends towards e-Navigation. Operational and legal status of the Polish DGPS network is also mentioned in this context.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 39-42
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Positioning Using GPS and GLONASS Systems
Autorzy:: Kujawa, L.
Rogowski, J. B.
Kopańska, K.
Powiązania:: https://bibliotekanauki.pl/articles/116742.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Global Navigation Satellite System (GNSS)
Global Positioning System GPS
GLONASS
Precise Positioning
Positioning Accuracy
Geometric Dilution of Precision (GDOP)
Horizontal Dilution of Precision (HDOP)
DOP Analysis
Opis:: This paper presents an experiment involving the processing of observations using the GPS and GPS/GLONASS systems performed at the BOGO, BOGI, and JOZ2 IGS stations. Due to the small number of GLONASS satellites, the authors failed to receive any significant improvement in positioning accuracy using GPS and GLONASS observations jointly.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 283-286
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Obliczanie bieżących współrzędnych celu powietrznego w oparciu o współrzędne mierzone przez odległe urządzenia śledzące
Calculation of current coordinates of aerial target based on the coordinates measured by distant tracking systems
Autorzy:: Borowczyk, W.
Kaczmarek, W.
Powiązania:: https://bibliotekanauki.pl/articles/209612.pdf
Data publikacji:: 2007
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:: system satelitarny GPS
przeciwlotnicze zestawy artyleryjsko-rakietowe
bieżące współrzędne celu
Global Positioning System GPS
anti-aircrafts systems
current coordinates of aerial aim
Opis:: W artykule przedstawiono zagadnienia związane z Globalnym Systemem Pozycjonowania GPS oraz z różnorodnością układów odniesienia. Zwrócono uwagę na konieczność transformacji układów współrzędnych w przypadku korzystania z różnego typu map. Omówiono problem wykorzystania systemu nawigacji satelitarnej do określania położenia przeciwlotniczych zestawów artyleryjsko-rakietowych oraz wyjaśniono zasady obliczania bieżących współrzędnych celu powietrznego w oparciu o współrzędne mierzone przez odległe urządzenia śledzące. W drugiej części artykułu przeanalizowano dokładność przekształcania bieżących współrzędnych celu.
In this paper, the problem of calculation of current co-ordinates of aerial target is presented. The authors present the methods enploying GPS-based satellite navigation systems in anti-aircraft defence and the problem of transformation of coordinates in different coordinate systems. Moreover, the authors present an analysis of advanced calculation errors.
Źródło:: Biuletyn Wojskowej Akademii Technicznej; 2007, 56, 3; 211-227
1234-5865
Pojawia się w:: Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: An Effect of Urban Development on the Accuracy of the GPS/EGNOS System
Autorzy:: Bober, R.
Szewczuk, T.
Wolski, A.
Powiązania:: https://bibliotekanauki.pl/articles/116270.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Global Navigation Satellite System (GNSS)
Global Positioning System GPS
EGNOS
Effect of Urban Development
Accuracy
Accuracy of Position
positioning system
Port of Szczecin
Opis:: This article presents the results of research into the accuracy of position determination by a GPS/EGNOS system in a densely built-up residential area. These results are compared with the relevant results obtained for a position in an open area.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 3; 235-238
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Nominal and Real Accuracy of the GPS Position Indicated by Different Maritime Receivers in Different Modes
Autorzy:: Januszewski, J.
Powiązania:: https://bibliotekanauki.pl/articles/117133.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Global Navigation Satellite System (GNSS)
Global Positioning System GPS
Navigational System
Navigational System Receiver
Accuracy of Position
GPS Receiver
GPS Position Accuracy
Dilution of Precision (DOP)
Opis:: Nowadays on the ship’s bridge two or even more GPS receivers are installed. As in the major cases the coordinates of the position obtained from these receivers differ the following questions can be posed – what is the cause of this divergence, which receiver in the first must be taken into account etc. Based on information published in annual GPS and GNSS receiver survey it was estimated the percentage of GPS receivers designed for marine and/or navigation users. The measurements of GPS position based on the four different stationary GPS receivers were realized in the laboratory of Gdynia Maritime University in Poland in the summer 2012. The coordinates of the position of all these receivers were registered at the same time. The measurements in mode 3D were made for different input data, the same for all receivers. The distances between the individual unit’s antenna were considered also. Next measurements in mode 3D also were realized on two ships in different European ports. Additional measurements were made in mode 2D with three receivers for different their’s antenna heights. The results showed that the GPS position accuracy depends on the type of the receiver and its technical parameters particularly.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 11-19
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Application of 3-D Velocity Measurement of Vessel by VI-GPS for STS Lightering
Autorzy:: Yoo, Y.
Pedersen, E.
Tatsumi, K.
Kouguchi, N.
Arai, Y.
Powiązania:: https://bibliotekanauki.pl/articles/117175.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Global Navigation Satellite System (GNSS)
Global Positioning System GPS
Vessel Velocity
STS Lightering
3D Velocity Measurement
Ship-to-Ship (STS) Operation
Liquefied Natural Gas (LNG)
Kinematic GPS (KGPS)
Opis:: A lightering operation is a type of Ship-To-Ship (STS) operation where two ships are together in open waters and transfer the cargo e.g. crude oil, LNG. High skills and experience are required by the human operators as no relevant equipment for determining the relative speeds and distances with sufficient accuracies has been implemented. The officer in charge of an STS lightering takes the decision on adequate maneuvering orders based on predominantly visual observations during the final approach. Landing on all fenders simultaneously is an objective in order to minimize ship-fender contact forces, but this is rather difficult to achieve in practice even in calm sea due to the effect of hydrodynamic interaction when the ships are closing in. Furthermore, currents that are present in the lightering zone add to the operational complexity. A field measurement experiment has been carried out with a Velocity Information GPS (VI-GPS) system installed onboard a ferry approaching port for berthing which is similar to an STS lightering. The paper proposes to apply VI-GPS as input sensor to a decision-support and guidance system aiming to provide accurate velocity information to the officer in charge of an STS operation. It is argued that DOP of VI-GPS is related to the velocity error.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 43-48
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Application of Satellite Navigation Techniques for Vessel’s Drift Determination in Piloting Areas
Autorzy:: Blokus-Roszkowska, A.
Jurdziński, M.
Powiązania:: https://bibliotekanauki.pl/articles/117034.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Satellite Navigation Technics
Global Navigation Satellite System (GNSS)
Pilot Navigation
Piloting Area
Vessel's Drift
satellite navigation system
Ship Control System
Global Positioning System GPS
Opis:: The paper deals with use the satellite navigation system for increase safety of navigation in difficult areas. There have been presented an algorithm to ship control procedure during environmental disturbances in narrow passages.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 3; 389-392
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

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

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Skocz do pozycji: 13.

Tytuł:: Data Integration from GPS and Inertial Navigation Systems for Pedestrians in Urban Area
Autorzy:: Bikonis, K.
Demkowicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/115987.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Inertial Measurement Unit (IMU)
Urban Area
inertial navigation system (INS)
Global Positioning System GPS
extended Kalman filter (EKF)
pedestrian trajectory
Micro Electro Mechanical Systems (MEMS)
Integration of Navigation
Opis:: The GPS system is widely used in navigation and the GPS receiver can offer long-term stable absolute positioning information. The overall system performance depends largely on the signal environments. The position obtained from GPS is often degraded due to obstruction and multipath effect caused by buildings, city infrastructure and vegetation, whereas, the current performance achieved by inertial navigation systems (INS) is still relatively poor due to the large inertial sensor errors. The complementary features of GPS and INS are the main reasons why integrated GPS/INS systems are becoming increasingly popular. GPS/INS systems offer a high data rate, high accuracy position and orientation that can work in all environments, particularly those where satellite availability is restricted. In the paper integration algorithm of GPS and INS systems data for pedestrians in urban area is presented. For data integration an Extended Kalman Filter (EKF) algorithm is proposed. Complementary characteristics of GPS and INS with EKF can overcome the problem of huge INS drifts, GPS outages, dense multipath effect and other individual problems associated with these sensors.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 3; 401-406
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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