Optimization of Receiver Filter for Instantaneous Polarization Radar

LI Mian-quan; MA Liang; LI Yong-zhen; LIU Yong; WANG Xue-song

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Optimization of Receiver Filter for Instantaneous Polarization Radar

更新时间：2025-07-16

- Optimization of Receiver Filter for Instantaneous Polarization Radar
- Acta Electronica Sinica Vol. 38, Issue 12, Pages: 2915-2919(2010)
- 作者机构：
  
  国防科技大学电子科学与工程学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN95
- Published：2010
- 稿件说明：
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LI Mian-quan, MA Liang, LI Yong-zhen, et al. Optimization of Receiver Filter for Instantaneous Polarization Radar[J]. Acta Electronica Sinica, 2010, 38(12): 2915-2919.
DOI：

LI Mian-quan, MA Liang, LI Yong-zhen, et al. Optimization of Receiver Filter for Instantaneous Polarization Radar[J]. Acta Electronica Sinica, 2010, 38(12): 2915-2919. DOI：

摘要

针对瞬态极化雷达发射波形自相关和互相关特性相互制约的矛盾

本文对瞬态极化雷达的接收滤波器进行优化设计

以减小相同极化通道的距离旁瓣和不同极化通道之间的相互串扰

提高全极化雷达的检测和估计性能.建立了瞬态极化雷达回波信号模型

分析了目标极化散射矩阵估计的误差来源

根据估计误差函数建立优化模型

通过凸优化求解对不同极化通道的滤波器进行优化设计.分析了单个静止点目标、运动目标和多目标情况下滤波器的性能

并给出了仿真结果.最后

利用实测数据验证了本文方法的有效性.

Abstract

To solve the confliction between auto-correlation and cross-correlation of waveforms transmitted by instantaneous polarization radar

the receiver filter is optimized in this paper.The optimal filter is designed to decrease the interference between the range gates and channels

improve the estimation accuracy of polarization scattering matrix (PSM) and the detection performance of radar.Firstly

the target echo is modeled.The estimation error of PSM is analyzed.Secondly

the filter for each polarization channel is optimized via convex optimization

which is based on the minimum the sum of estimation error.Finally

the performance of the filter is analyzed in a variety of typical scenarios

e.g.

single stationary target

motional targets

multiple targets

etc.It is demonstrated that this method is effective by numerical examples using both simulation and experiment data.The research is valuable for the receiver design and implement of instantaneous polarization radar.

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