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基于滑动时间窗的雷达脉冲列分选方法

刘严 郭福成

刘严, 郭福成. 基于滑动时间窗的雷达脉冲列分选方法[J]. 电子与信息学报, 2022, 44(11): 3900-3909. doi: 10.11999/JEIT210982
引用本文: 刘严, 郭福成. 基于滑动时间窗的雷达脉冲列分选方法[J]. 电子与信息学报, 2022, 44(11): 3900-3909. doi: 10.11999/JEIT210982
LIU Yan, GUO Fucheng. Deinterleaving Radar Pulse Trains with Sliding Time Windows[J]. Journal of Electronics & Information Technology, 2022, 44(11): 3900-3909. doi: 10.11999/JEIT210982
Citation: LIU Yan, GUO Fucheng. Deinterleaving Radar Pulse Trains with Sliding Time Windows[J]. Journal of Electronics & Information Technology, 2022, 44(11): 3900-3909. doi: 10.11999/JEIT210982

基于滑动时间窗的雷达脉冲列分选方法

doi: 10.11999/JEIT210982
基金项目: 湖南省创新研究群体项目(2019JJ10004)
详细信息
    作者简介:

    刘严:女,1987年生,博士生,研究方向为无源定位技术

    郭福成:男,1975年生,教授,研究方向为无源定位技术、雷达/通信信号处理

    通讯作者:

    刘严 liuyan_0701@qq.com

  • 中图分类号: TN971

Deinterleaving Radar Pulse Trains with Sliding Time Windows

Funds: The Provincial Innovation Research Group of Hunan(2019JJ10004)
  • 摘要: 电磁空间中大量存在着相互交错的固定重频雷达脉冲列,例如海面大量舰船发射的导航雷达信号、机载脉冲多普勒雷达在不同时段发射的相干脉冲列等。这些脉冲列以时间片段的形式存在,电子侦察分析系统无法事先确定其起止时刻,给这类雷达的重频参数估计和脉冲分选造成了较大困难。该文首先分析脉冲列的短持续时间特性给传统脉冲分选方法性能造成的负面影响,然后引入滑动时间窗思想来削弱这一影响,并据此提出脉冲重频间隔(PRI)高精度估计和脉冲分选方法。仿真结果验证了新方法的重频参数估计和脉冲分选性能。
  • 图  1  滑动时间窗中的脉冲对位置分布

    图  3  单个时窗内脉冲列的相位域观测值分布情况

    图  2  典型场景中不同重频参数估计方法的PRI谱

    图  4  雷达脉冲分选正确率和重频参数估计精度随漏脉冲率变化情况

    图  5  雷达脉冲分选正确率和重频参数估计精度随交错雷达数目变化情况

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出版历程
  • 收稿日期:  2021-09-15
  • 修回日期:  2022-02-26
  • 录用日期:  2022-03-10
  • 网络出版日期:  2022-03-21
  • 刊出日期:  2022-11-14

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