Abstract

본 논문은 저궤도 관측위성에 탑재된 GPS 수신기의 궤도상의 성능과 지상 시험 결과를 비교 분석하였다. 지상 시험 환경을 구축하여 다양한 환경에서 시험을 수행하였으며 2006년 발사 이후 6년째 운영 중인 GPS 수신기의 궤도상의 데이터 분석도 수행하였다. 궤도상의 데이터는 초기 운영, 1차 임무 완료 시점 및 최근 결과를 선택하여 정리하였다. 위치 및 시각 동기 정밀도에 대하여 지상 시험과 궤도상의 성능이 일치하여 지상 시험의 유효성을 확인하였다. 본 논문에서 제시한 시험 환경 및 분석 방법은 향후 위성용 GPS 수신기 개발 및 검증에 도움이 될 것으로 예상한다. This paper presents a performance analysis of the GPS(Global Positioning System) receiver on board in LEO satellites, based on the comparison of its in-orbit performances and corresponding ground test results. An extensive ground tests on the subject GPS receiver has been performed in diverse conditions under the right frame of ground test environments and the analysis of in-orbit performances has also been performed with the huge amount of accumulated GPS data which has been in operation for 6 years since its launch on 2006. For this analysis, we chose three sets of in-orbit data; the data during the early mission period, the data at the 3-year mission completion time, and the most recent in-orbit data. As the performance measures, we selected the position and time synchronization accuracy, and the comparative analysis shows the concurrency between the in-orbit performances and the ground test results with in these performance measures, verifying the validity of the ground test. It is expected that the test configuration and analysis method presented in this paper can be applied to developing and verifying the future Koreanized satellite GPS receivers.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.