Instantaneous Measurement of Radar Target Polarization Scattering Matrix

WANG Xue-song; WANG Jian; WANG Tao; LI Yong-zhen; XU Zhen-hai; SHI Long-fei

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Instantaneous Measurement of Radar Target Polarization Scattering Matrix

更新时间：2025-07-16

- Instantaneous Measurement of Radar Target Polarization Scattering Matrix
- Acta Electronica Sinica Vol. 34, Issue 6, Pages: 1020-1025(2006)
- 作者机构：
  
  1. 国防科技大学电子科学与工程学院,湖南,长沙,410073
  2. 南京理工大学,江苏,南京,210094
  3. 国防科技大学电子科学与工程学院湖南长沙,410073
  4. 南京理工大学江苏南京,210094
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN95
- Published：2006
- 稿件说明：
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WANG Xue-song, WANG Jian, WANG Tao, et al. Instantaneous Measurement of Radar Target Polarization Scattering Matrix[J]. Acta Electronica Sinica, 2006, 34(6): 1020-1025.
DOI：

WANG Xue-song, WANG Jian, WANG Tao, et al. Instantaneous Measurement of Radar Target Polarization Scattering Matrix[J]. Acta Electronica Sinica, 2006, 34(6): 1020-1025. DOI：

摘要

目标极化特性的瞬时测量是极化雷达探测与目标识别等领域非常关心的基础性问题.本文针对频移脉冲波形

研究了互易条件下目标极化特性瞬时测量问题.建立了瞬时极化测量雷达的目标回波模型

在深入分析了目标回波极化特性的基础上

提出了一种基于离散时间傅立叶变换的完整极化散射矩阵频域估计算法

证明其为无偏估计

给出了估计精度的理论公式和实验结果.

Abstract

The topic of instantaneous measurement of radar target polarization characteristics is of great importance in such fields as polarimetric radar and target recognition.In this paper

the problem of polarization scattering matrix measurement of the reciprocal target is discussed for the case of frequency-shifted waveforms.Radar echoes are modeled for the instantaneous polarization measurement.On the basis of target returns’ polarization characteristics

a frequency-domain estimate algorithm is presented for the instantaneous polarization measurement using the discrete time Fourier transform (DTFT).Algorithm performance is evaluated and theoretical formulae are derived.Efficiency of this algorithm is validated by experiment results.

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