S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
UKF를 사용한 운항 중 정렬 성능 분석
Performance Analysis of In-Flight Alignment Using UKF
- 강우용; 김광진; 박찬국
- Issue Date
- 제어·자동화·시스템공학 논문지, 제12권, 제11호, pp. 1124-1129, 11. 2006
- In this paper, in-flight alignment algorithm using UKF is presented for an SDiNS aided by SSBL or GPS system under large initial heading error. The EKF usually applied for this task. This approximates the propagation of mean and covariance accurate to first-order only. To overcome this limitation, the unscented transformation that achieves second order approximation is applied to
the in-flight alignment. To analyze the performance of the proposed method, simulations for S-type trajectory are carried out. The results show that performance of EKF and UKF are the almost same when the initial heading error is smaller than 30°, but UKF has a better performance for large initial heading error about 45°.
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