| FDEKF在反辐射无人机抗目标雷达关机中的应用 |
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| 引用本文： | 朱学平,杨军,祝小平.FDEKF在反辐射无人机抗目标雷达关机中的应用[J].飞行力学,2008,26(3):89-92. |
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| 作者姓名： | 朱学平 杨军 祝小平 |
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| 作者单位： | 1. 西北工业大学,航天学院,陕西,西安,710072
2. 西北工业大学,无人机研究所,陕西,西安,710072 |
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| 摘 要： | 基于捷联惯导/反辐射导引头组合抗目标雷达关机制导方案,研究了有限差分卡尔曼滤波(FDEKF)方法在对目标雷达被动定位中的应用。考虑反辐射导引头测角存在非线性特性,提出了一种基于扩展状态变量维数的方法实现了目标状态估计和导引头非线性特性补偿。仿真结果表明,FDEKF是一种具有良好性能的非线性滤波方法,可以代替传统的EKF解决反辐射无人机对目标雷达的被动定位问题。
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| 关 键 词： | 反辐射无人机 有限差分卡尔曼滤波 非线性滤波 被动定位 |
Application of FDEKF to Antagonism Against the Radar Stopping Radiating of Anti-Radiation UAV |
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| ZHU Xue-ping,YANG Jun,ZHU Xiao-ping.Application of FDEKF to Antagonism Against the Radar Stopping Radiating of Anti-Radiation UAV[J].Flight Dynamics,2008,26(3):89-92. |
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| Authors: | ZHU Xue-ping YANG Jun ZHU Xiao-ping |
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| Abstract: | Based on guidance scheme of antagonism against the radar stopping radiating using the strapdown inertial navigation system and antiradar seeker,the application of finite-difference extended Kalman filter(FDEKF) to passive localization of target is studied.Considering nonlinear characteristic of the antiradar seeker,a method of extending dimensions of state variables was present to achieve estimation of target's state and compensation of nonlinear characteristic of the antiradar seeker.The result of simulation shows that the FDEKF has good performance and can be used as nonlinear filter instead of traditional method of EKF to solve the problem of passive localization to a target. |
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| Keywords: | antiradiation UAV finite-difference extended Kalman filter(FDEKF) nonlinear filter passive localization |
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