改进粒子滤波的全捷联导引头制导信息估计

doi:10.3969/j.issn.1009-086x.2018.01.013

现代防御技术 ›› 2018, Vol. 46 ›› Issue (1): 79-87.DOI: 10.3969/j.issn.1009-086x.2018.01.013

改进粒子滤波的全捷联导引头制导信息估计

庞威, 谢晓方, 刘家祺, 孙涛

海军航空工程学院兵器科学与技术系,山东烟台 264001

收稿日期:2017-03-02 修回日期:2017-05-21 出版日期:2018-02-28 发布日期:2020-11-25
作者简介:庞威(1987-),男,山东菏泽人。博士生,研究方向为制导与控制、武器系统建模与仿真。通信地址:210042 江苏省南京市玄武区锁金四村7栋503室 E-mail:metrix_yt@163.com
基金资助:
中国博士后科学基金(2013T60923)

Guidance Information Estimation of Full Strap-down Seeker with Improved Particle Filter

PANG Wei, XIE Xiao-fang, LIU Jia-qi, SUN Tao

Naval Aeronautical and Astrounautical University,Department of Ordance Science and Technology,Shandong Yantai 264001,China

Received:2017-03-02 Revised:2017-05-21 Online:2018-02-28 Published:2020-11-25

摘要/Abstract

摘要： 针对全捷联导引头无法直接提取视线角速度等制导信息问题,研究了基于改进粒子滤波在制导信息估计中的应用。首先利用坐标变换关系推导了视线角速度解耦公式,并根据弹目相对运动关系建立了系统的状态方程和观测方程;然后考虑到系统测量噪声非高斯以及状态方程和观测方程非线性的特点,提出了基于分层采样的改进粒子滤波视线角速度估计方法;最后,建立了视线角速度估计的半实物仿真实验。结果表明:基于改进粒子滤波算法估计的视线角和角速率优于扩展卡尔曼滤波算法和标准粒子滤波方法,可为新型滑翔制导炸弹的研制提供一定的参考。

关键词: 兵器科学与技术, 全捷联导引头, 解耦, 视线角速度, 改进粒子滤波, 滑翔炸弹

Abstract: As the strap-down infrared image seeker cannot get the line-of-sight (LOS) angular rate directly, the application of improved particle filter (IPF) in LOS angular rate estimation is studied. Based on the relationship of coordinate transformation, the angular velocity decoupling formula is derived; and according to the relative motion relationship between the bomb and the target, the state equation and observation equation are established. Due to the nonlinear characteristics of the system measurement noise non Gauss and the state equation and the observation equation, the LOS angular rate estimation method based on the improved particle filter is proposed. The semi physical simulation experiment of LOS angular rate estimation is established. The results show that the IPF method is better than the extended Kalman filter (EKF) and PF method. IPF method can provide some reference for the new development of gliding guided bomb.

Key words: ordnance science and technology, strapdown seeker, decoupling, line-of-sight (LOS) angular rate, improved particle filter (IPF), guided bomb

中图分类号:

庞威, 谢晓方, 刘家祺, 孙涛. 改进粒子滤波的全捷联导引头制导信息估计[J]. 现代防御技术, 2018, 46(1): 79-87.

PANG Wei, XIE Xiao-fang, LIU Jia-qi, SUN Tao. Guidance Information Estimation of Full Strap-down Seeker with Improved Particle Filter[J]. Modern Defense Technology, 2018, 46(1): 79-87.

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改进粒子滤波的全捷联导引头制导信息估计

Guidance Information Estimation of Full Strap-down Seeker with Improved Particle Filter

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