지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.10
- 수록면
- 1,955 - 1,959 (5page)
이용수
초록· 키워드
오류제보하기
Precise orbit determination of navigation satellites is very important to provide accurate positioning information to the ground users. Measurement errors should be minimized to get precise orbit trajectory. A couple of ground stations are required to obtain range data using radio or SLR(Satellite Laser Ranging). However, it is very difficult to ensure observability with ground stations located inside Korean peninsula for high altitude satellites such as HEO(High Earth Orbit) or GEO(Geostationary Earth Orbit) satellites. This paper presents a comparative study on the measurement errors for the precise orbit determination of navigation satellites according to the location of the ground stations. A new method of positioning ground stations to uninhabited areas such as north or south poles and/or relevant area is proposed, and the effect of additional locations of the ground stations are investigated. Ground stations located in higher latitude are extremely useful to obtain quality range data for HEO/GEO satellites because they have high elevation angle when they are used in combination with the ones located inside the Korean peninsula. Optimal geometric locations and numbers are sought via comparative study in the pools of candidate locations. Common error sources such as troposphere errors are considered to extract best locations for ground stations.
목차
Abstract
1. INTRODUCTION
2. ALLOCATION OF GROUND STATIONS
3. ANALYSIS OF THE ALLOCATION
CONCLUSIONS
REFERENCES
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