| 基于"天基红外系统"对弹道导弹主动段估计滤波算法研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 梁新刚 周志成 曲广吉 |
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| 作者单位： | 中国空间技术研究院,北京,100094 |
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| 摘 要： | 美国的"天基红外系统"(SBIRS)包括高轨和低轨两类预警星座,前者主要用于弹道导弹主动段探测,后者主要用于被动段的跟踪测量.文章利用其高轨静止星座,对只有角测量条件下的主动段弹道估计滤波算法进行了分析比较.首先给出主动段状态方程和测量方程,然后分别结合扩展卡尔曼滤波、无迹卡尔曼滤波和粒子滤波这三类典型非线性滤波估计算...
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| 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 |
Comparison of Nonlinear Filters in Angles-only Boost Trajectory Estimation Based on SBIRS |
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| LIANG Xingang,ZHOU Zhicheng,QU Guangji.Comparison of Nonlinear Filters in Angles-only Boost Trajectory Estimation Based on SBIRS[J].Spacecraft Engineering,2011,20(3):56-63. |
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| Authors: | LIANG Xingang ZHOU Zhicheng QU Guangji |
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| Institution: | (China Academy of Space Technology,Beijing 100094,China) |
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| Abstract: | Space-based Infrared System(SBIRS) consists of two kinds of constellation which are SBIRS-High and SBIRS-Low.SBIRS-High is aimed at the ballistic missile during boosting phase,and SBIRS-Low 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. |
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| Keywords: | SBIRS trajectory estimation extended Kalman filter unscented Kalman filter unscented particle filter simulation |
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