Detection of Moving Targets in Commercial Illuminator Based Radar System with Strong Direct Signal and Multipath Clutters Presented

WANG Jun; ZHAO Hong-li; ZHANG Shou-hong; BAO Zheng

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Detection of Moving Targets in Commercial Illuminator Based Radar System with Strong Direct Signal and Multipath Clutters Presented

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- Detection of Moving Targets in Commercial Illuminator Based Radar System with Strong Direct Signal and Multipath Clutters Presented
- Acta Electronica Sinica Vol. 33, Issue 3, Pages: 419-422(2005)
- 作者机构：
  
  西安电子科技大学雷达信号处理国家重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN953
- Published：2005
- 稿件说明：
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WANG Jun, ZHAO Hong-li, ZHANG Shou-hong, et al. Detection of Moving Targets in Commercial Illuminator Based Radar System with Strong Direct Signal and Multipath Clutters Presented[J]. Acta Electronica Sinica, 2005, 33(3): 419-422.
DOI：

WANG Jun, ZHAO Hong-li, ZHANG Shou-hong, et al. Detection of Moving Targets in Commercial Illuminator Based Radar System with Strong Direct Signal and Multipath Clutters Presented[J]. Acta Electronica Sinica, 2005, 33(3): 419-422. DOI：

摘要

研究了利用非合作商用调频照射信号的收发分置连续波无源雷达系统运动目标的检测技术.针对该系统中强直达波及多径杂波对动目标检测的干扰

提出了一种直达波和多径到达时间为整数采样迟延的杂波抑制方法和利用分数内插提高杂波对消性能的算法.在杂波对消的基础上

通过对回波信号作长时间相干匹配滤波实现对微弱运动目标的检测.基于实测数据及实时系统的处理结果验证了方法的有效性.

Abstract

Clutter cancellation algorithm for passive coherent detection of weak moving targets in a non-cooperative bistatic radar system using commercial FM illuminating is provided.The algorithm presented a method for canceling clutter with arrival time located exactly at integral sampled intervals

and a method exploiting fractional delay interpolation for better rejection of the interference from strong direct signal and multipath reflected clutters.After direct signal and multipath clutter cancellation

the moving targets can be easily detected and tracked using cascade long-term coherent match filtering of received signal.The efficacy of the method is demonstrated by offline processing real collected data sets as well as real-time processing via a mobile experimental system.

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