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
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제35권 제4호
- 발행연도
- 2018.12
- 수록면
- 243 - 252 (10page)
- DOI
- https://doi.org/10.5140/JASS.2018.35.4.243
이용수
초록· 키워드
오류제보하기
In a satellite gravimetry mission similar to GRACE, the precision of inter-satellite ranging is one of the key factors affecting the quality of gravity field recovery. In this paper, the impact of ranging precision on the accuracy of recovered geopotential coefficients is analyzed. Simulated precise orbit determination (POD) data and inter-satellite range data of formation-flying satellites containing white noise were generated, and geopotential coefficients were recovered from these simulated data sets using the crude acceleration approach. The accuracy of the recovered coefficients was quantitatively compared between data sets encompassing different ranging precisions. From this analysis, a rough prediction of the accuracy of geopotential coefficients could be obtained from the hypothetical mission. For a given POD precision, a ranging measurement precision that matches the POD precision was determined. Since the purpose of adopting inter-satellite ranging in a gravimetry mission is to overcome the imprecision of determining orbits, ranging measurements should be more precise than POD. For that reason, it can be concluded that this critical ranging precision matching the POD precision can serve as the minimum precision requirement for an on-board ranging device. Although the result obtained herein is about a very particular case, this methodology can also be applied in cases where different parameters are used.
목차
등록된 정보가 없습니다.
참고문헌 (33)
참고문헌 신청
최만수 / 2014 / Performance Analysis of the First Korean Satellite Laser Ranging System / Journal of Astronomy and Space Sciences 31(3):225~233
Youngho Eun / 2018 / Development of a hardware-in-the-loop testbed to demonstrate multiple spacecraft operations in proximity / Acta Astronautica 147:48~58
Flechtner F / 2012 / Status of the GRACE follow-on mission / Proceedings of the International Association of Geodesy (IAU) Symposium GGHS2012
Rune Floberghagen / 2011 / Mission design, operation and exploitation of the gravity field and steady-state ocean circulation explorer mission / Journal of Geodesy 85(11):749~758
Jakob Flury / 2008 / Precise accelerometry onboard the GRACE gravity field satellite mission / Advances in Space Research 42(8):1414~1423
Youngho Eun / 2018 / Development of a hardware-in-the-loop testbed to demonstrate multiple spacecraft operations in proximity / Acta Astronautica 147:48~58
Flechtner F / 2012 / Status of the GRACE follow-on mission / Proceedings of the International Association of Geodesy (IAU) Symposium GGHS2012
Rune Floberghagen / 2011 / Mission design, operation and exploitation of the gravity field and steady-state ocean circulation explorer mission / Journal of Geodesy 85(11):749~758
Jakob Flury / 2008 / Precise accelerometry onboard the GRACE gravity field satellite mission / Advances in Space Research 42(8):1414~1423
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