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학술지
GPS/Galileo 통합 항법 알고리즘 구현 및 시각 및 좌표계 차이에 따른 영향 분석
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- 발행일
- 200802
- 출처
- 한국항공우주학회지, v.36 no.2, pp.171-178
- ISSN
- 1225-1348
- 출판사
- 한국항공우주학회 (KSAS)
- 협약과제
- 08MR1800, 위성항법지상국시스템 및 탐색구조단말기 기술개발, 이상욱
- 초록
- 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 제안 키워드
- Coordinate system, Integrated Navigation, Navigation algorithm, Navigation error, Navigation performance, Position error, channel errors, error model, global navigation satellite system(GNSS)