| 一种单站纯方位目标跟踪中的线性近似化滤波算法 |
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| 引用本文： | 石章松,刘忠,刘健.一种单站纯方位目标跟踪中的线性近似化滤波算法[J].海军工程大学学报,2006,18(2):14-18. |
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| 作者姓名： | 石章松 刘忠 刘健 |
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| 作者单位： | 海军工程大学,电子工程学院,湖北,武汉,430033 |
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| 基金项目： | 国防“十五”预研资助项目 |
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| 摘 要： | 针对EKF算法中存在初始化困难的缺陷,利用近似线性化的方法,构建基于修正极坐标系下的近似线性最小二乘滤波算法ALF;以ALF作为EKF滤波器的初始化算法,实现联合ALF和EKF的两阶段滤波算法,并将它应用在水下单站纯方位目标跟踪中。仿真结果表明,由ALF和EKF组成的两阶段滤波算法具有很好的稳定性,算法精度较高,是一种有效的算法,对潜艇实施隐蔽探测与跟踪具有重要意义.
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| 关 键 词： | 纯方位目标跟踪 线性化 卡尔曼滤波 |
| 文章编号： | 1009-3486(2006)02-0014-05 |
| 修稿时间： | 2005年10月19 |
An approximate linear filtering algorithm applied in single platform bearings-only target tracking |
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| SHI Zhang-song,LIU Zhong,LIU Jian.An approximate linear filtering algorithm applied in single platform bearings-only target tracking[J].Journal of Naval University of Engineering,2006,18(2):14-18. |
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| Authors: | SHI Zhang-song LIU Zhong LIU Jian |
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| Abstract: | To overcome the limitation of the initializationof the extended Kalman filters(EKF),the approximatelinear mean least-square filtering based on the modified polar coordination is created by the approximatelinearization method.With the ALF as the initialization of the EKFalgorithm,this paper presents a two-stage filtering scheme combining the ALF and EKF,and then applies it to the underwater single platform bearings-only target tracking.The simulation proves that the two-hjstage filtering algorithm is a stable and high accuratealgorithm,which is important for submarines to detect and tract the underwater target. |
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| Keywords: | bearings-only target tracking linearization Kalman filtering |
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