航天器工程2011，Vol.20Issue(3)：56-63,8.
基于"天基红外系统"对弹道导弹主动段估计滤波算法研究
Comparison of Nonlinear Filters in Angles-only Boost Trajectory Estimation Based on SBIRS
摘要
Abstract
Space-based Infrared System (SBIRS) consists of two kinds of constellation which are SBIRSHigh and SBIRS-Low.SBIRS-High is aimed at the ballistic missile during boosting phase, and SBIRSLow is aimed at the ballistic missile during coast phase Trajectory estimation for boost phase with angles-only measurements is studied in this paper based on SBIRS-High.By giving state equations and measurement equations firstly, the three representative filters for nonlinear estimation, extended Kalman filter (EKF), the unscented Kalman filter (UKF) and particle filter (PF) are used in order to compare their performance in angles-only boost trajectory estimation.Numerical simulations with different measurement noise and different process noise are performed.The results show that UKF is preferred considering filter stability, estimation precision and computational efficiency.关键词
"天基红外系统"/弹道估计/扩展卡尔曼滤波/无迹卡尔曼滤波/无迹粒子滤波/仿真Key words
SBIRS/trajectory estimation/ extended Kalman filter/ unscented Kalman filter/ unscented particle filter/ simulation/ simulation分类
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梁新刚,周志成,曲广吉..基于"天基红外系统"对弹道导弹主动段估计滤波算法研究[J].航天器工程,2011,20(3):56-63,8.
