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GPS/Galileo 통합 항법 알고리즘 구현 및 시각 및 좌표계 차이에 따른 영향 분석
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- Issue Date
- 2008-02
- Citation
- 한국항공우주학회지, v.36, no.2, pp.171-178
- ISSN
- 1225-1348
- Publisher
- 한국항공우주학회 (KSAS)
- Language
- Korean
- Type
- Journal Article
- Project Code
- 08MR1800, Developement of Global Navigation Satellite System Ground Station and Search And Rescue Beacon Technologies, Lee Sang Uk
- Abstract
- Galileo is the Europe's global navigation satellite system corresponding to the GPS. The GIOVE-A test experiment has been finished and the second test satellite GIOVE-B will be launched soon. The integration of GPS and Galileo lead an increase of visible satellite number. We can obtain an improved navigation performance in signal blocked area such as urban or forest. GPS and Galileo have each time-coordinate system and use the different error model to calculate the navigation solution. In this paper, we studied on GPS and Galileo channel error model and time-coordinate system. Using this result, we implement the integrated navigation algorithm. In simulation, we analyzed the navigation error caused by time and coordinate disagreement and verified performance of integrated navigation algorithm in terms of visible satellite number, DOP(Dilution of Pression) and position error.
- KSP Keywords
- Coordinate system, Integrated Navigation, Navigation algorithm, Navigation error, Navigation performance, Position error, channel errors, error model, global navigation satellite system(GNSS)