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基于Rao-Blackwellised粒子滤波的相控阵导引头指向误差斜率在线估计

王琪 廖志忠 燕飞

王琪, 廖志忠, 燕飞. 基于Rao-Blackwellised粒子滤波的相控阵导引头指向误差斜率在线估计[J]. 电子与信息学报, 2022, 44(9): 3178-3185. doi: 10.11999/JEIT210607
引用本文: 王琪, 廖志忠, 燕飞. 基于Rao-Blackwellised粒子滤波的相控阵导引头指向误差斜率在线估计[J]. 电子与信息学报, 2022, 44(9): 3178-3185. doi: 10.11999/JEIT210607
WANG Qi, LIAO Zhizhong, YAN Fei. Online Estimation for Phased Array Seeker Pointing Error Slope Using Rao-Blackwellised Particle Filters[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3178-3185. doi: 10.11999/JEIT210607
Citation: WANG Qi, LIAO Zhizhong, YAN Fei. Online Estimation for Phased Array Seeker Pointing Error Slope Using Rao-Blackwellised Particle Filters[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3178-3185. doi: 10.11999/JEIT210607

基于Rao-Blackwellised粒子滤波的相控阵导引头指向误差斜率在线估计

doi: 10.11999/JEIT210607
详细信息
    作者简介:

    王琪:男,高级工程师,研究方向为制导系统设计和非线性滤波

    廖志忠:男,研究员,研究方向为雷达型空空导弹总体设计

    燕飞:女,高级工程师,研究方向为信号处理、飞行器设计

    通讯作者:

    王琪 wangqibuaa@126.com

  • 中图分类号: TN911.72

Online Estimation for Phased Array Seeker Pointing Error Slope Using Rao-Blackwellised Particle Filters

  • 摘要: 针对相控阵导引头指向误差斜率对导弹制导系统带来的寄生回路振荡问题,该文提出一种指向误差斜率在线估计的算法,并能同步估计出目标状态。基于Rao-Blackwellised粒子滤波(RBPF),将指向误差斜率和目标状态同步估计问题分解为两个问题:一个是指向误差斜率的后验估计问题,另一个是以指向误差斜率估计为条件的目标状态估计问题。该文给出了算法的推导过程,并进行了数字仿真验证。仿真结果表明,该文所提算法对于相控阵导引头指向误差斜率的估计性能优良;并能同时准确估计出目标状态信息。采用此信息形成导引指令,可以消除指向误差斜率对制导系统的不利影响,提高系统的稳定性和制导精度。
  • 图  1  制导系统动力学模型

    图  2  导弹姿态角

    图  3  $f = 0.1\;{\text{Hz}}$时指向误差斜率估计

    图  4  $f = 0.5\;{\text{Hz}}$时指向误差斜率估计

    图  5  指向误差斜率估值的均方根误差(RMSE)

    图  6  目标状态估计误差

    图  7  目标状态估值误差的协方差

    图  8  导弹姿态角曲线

    图  9  导弹目标轨迹仿真结果($f = 0.1\;{\text{Hz}}$)

    表  1  仿真初始条件

    符号定义取值
    ${V_{\rm{T}}}$目标速度300 m/s
    ${V_{\rm{M}}}$导弹速度600 m/s
    ${D_0}$导弹目标初始距离10000 m
    ${\theta _{\rm{M}}}$导弹初始偏角15°
    ${\theta _{\rm{T}}}$目标飞行偏角160°
    下载: 导出CSV

    表  2  仿真参数

    符号定义取值
    SNR信噪比25 dB
    ${\sigma _R}$导引头角度测量噪声1 mrad
    M粒子数100
    [a,b]均匀分布区间[–0.06, 0.06]
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-06-21
  • 修回日期:  2021-09-28
  • 网络出版日期:  2021-10-22
  • 刊出日期:  2022-09-19

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