上海航天2012，Vol.29Issue(6)：26-31,67,7.
抑制UKF发散的改进算法在卫星轨道确定中的应用
Improved UKF Algorithm for Instability-Suppression and Its Application to Orbit Determination
摘要
Abstract
In order to prevent from the instability of common unscented Kalman filtering (UKF) algorithm in practical application, the principle and algorithm of unscented transform (UT) were discussed based on the interpretion of filtering spreading caused by the linear Kalman frame in this paper. The reasons of instability of UKF were given out. Two improved algorithms for the filtration spreading-suppression were put forward. The main causes of the orbit instability for some spacehorne GPS low orbit satellite were analyzed by the simulation. The results showed that the improved algorithm was effective.关键词
卫星轨道确定/无迹转换/无迹Kalman滤波/滤波发散/抑制/改进UKFKey words
Satellite orbit determination/Unscented transform/Unscented Kalman filtering/Instability/Suppression/Improved unscented Kalman' filtering引用本文复制引用
郭雪姣,周海银,潘晓刚..抑制UKF发散的改进算法在卫星轨道确定中的应用[J].上海航天,2012,29(6):26-31,67,7.基金项目
国家自然科学基金 （）
