基于星载测向体制的辐射源定位融合算法

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (12): 2875-2878.

基于星载测向体制的辐射源定位融合算法

刘海军, 柳征, 姜文利, 周一宇

国防科学技术大学电子科学与工程学院，湖南长沙 410073

出版日期:2009-12-24 发布日期:2010-01-03

Integration algorithm of emitter position based on satellites directionfinding systems

LIU Hai-jun, LIU Zheng, JIANG Wen-li, ZHOU Yi-yu

Coll. of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China

Online:2009-12-24 Published:2010-01-03

摘要/Abstract

摘要：

针对卫星多次观测定位点的估计问题，提出了一种定位点融合算法。该算法首先对加权融合的必要性进行了数学分析，证明了定位点分布是有偏的，然后基于星下点的定位误差分布，提出了一种定位点选择算法。同时，基于观测方程和定位误差方差分布给出了两种定位点融合方法，能使得融合后的定位误差方差达到最小。最后通过仿真实验，验证了该方法可以提高定位精度。

Abstract:

To deal with the problem of location estimation in satellite observation repetitions, a new position fusion algorithm is proposed. First, the necessary of the weighted fusion method is analyzed, and the distribution of location is biased that is proved. Then a loci selecting algorithm is proposed based on the distribution of location error. Two new methods of position fusion algorithm are given by using the observation equation and the variance distribution of location error, which make the variance arrive the minimum. Finally, the emulational experiment shows that the location precision can be improved by using the proposed method.

刘海军, 柳征, 姜文利, 周一宇. 基于星载测向体制的辐射源定位融合算法[J]. Journal of Systems Engineering and Electronics, 2009, 31(12): 2875-2878.

LIU Hai-jun, LIU Zheng, JIANG Wen-li, ZHOU Yi-yu. Integration algorithm of emitter position based on satellites directionfinding systems[J]. Journal of Systems Engineering and Electronics, 2009, 31(12): 2875-2878.