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
- 발행연도
- 2008.9
- 수록면
- 865 - 872 (8page)
이용수
초록· 키워드
오류제보하기
Spacecraft attitude estimation using the nonlinear unscented filter is addressed to fully utilize capabilities of the unscented transformation. To release significant computational load, an efficient technique is proposed by reasonably removing correlation between random variables. This modification introduces considerable reduction of sigma points and computational burden in matrix square-root calculation for most nonlinear systems. Unscented filter technique makes use of a set of sample points to predict mean and covariance. The general QUEST(QUaternion ESTimator) algorithm preserves explicitly the quaternion normalization, whereas extended Kalman filter(EKF) implicitly obeys the constraint. For spacecraft attitude estimation based on quaternion, an approach to computing quaternion means from sampled quaternions with guarantee of the quaternion norm constraint is introduced applying a constrained optimization technique. Finally, the performance of the new approach is demonstrated using a star tracker and rate-gyro measurements.
목차
Abstract
Ⅰ. 서론
Ⅱ. 고른 필터(unscented filtering)
Ⅲ. 자세 방정식 및 센서 모델
Ⅳ. 자세 추정(attitude estimation)
Ⅴ. 수치 시뮬레이션
Ⅵ. 결론
참고문헌
참고문헌 (8)
참고문헌 신청
1. [학술지(정기간행물)] - E. J. Lefferts / 1982 / Kalman filtering for spacecraft attitude estimation / Journal of Guidance Control and Dynamics 5 (5) : 417 ~ 429
2. [학술지(정기간행물)] - I. Y. Bar-Itzhack / 2006 / Attitude determination from vector observations : Quaternion estimation / IEEE trans. on Aerospace and Electronic Systems 21 (1) : 128 ~ 136
3. [학술지(정기간행물)] - M. D. Shuster / 1990 / Kalman filtering of spacecraft attitude and the QUEST model / Journal of Guidance Control and Dynamics 13 (3) : 506 ~ 514
4. [학술지(정기간행물)] - M.D.Shuster / 1989 / Three-axis attitude determination from vector observation / Journal of the Astronautical Science 37 (1) : 41 ~ 58
5. [학술지(정기간행물)] - M.L.Psiaki / 2000 / Attitude determination filtering via extended quaternion estimation / Journal of Guidance Control and Dynamics 23 (2) : 206 ~ 214
2. [학술지(정기간행물)] - I. Y. Bar-Itzhack / 2006 / Attitude determination from vector observations : Quaternion estimation / IEEE trans. on Aerospace and Electronic Systems 21 (1) : 128 ~ 136
3. [학술지(정기간행물)] - M. D. Shuster / 1990 / Kalman filtering of spacecraft attitude and the QUEST model / Journal of Guidance Control and Dynamics 13 (3) : 506 ~ 514
4. [학술지(정기간행물)] - M.D.Shuster / 1989 / Three-axis attitude determination from vector observation / Journal of the Astronautical Science 37 (1) : 41 ~ 58
5. [학술지(정기간행물)] - M.L.Psiaki / 2000 / Attitude determination filtering via extended quaternion estimation / Journal of Guidance Control and Dynamics 23 (2) : 206 ~ 214
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