A Joint Sparse Recovery STAP Method Based on SA-MUSIC

WANG Ze-tao; DUAN Ke-qing; XIE Wen-chong; WANG Yong-liang

doi:10.3969/j.issn.0372-2112.2015.05.003

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A Joint Sparse Recovery STAP Method Based on SA-MUSIC

更新时间：2025-07-16

- A Joint Sparse Recovery STAP Method Based on SA-MUSIC
- Acta Electronica Sinica Vol. 43, Issue 5, Pages: 846-853(2015)
- 作者机构：
  
  1. 国防科学技术大学电子科学与工程学院,湖南,长沙,410073
  2. 空军预警学院,湖北,武汉,430019
  3. 国防科学技术大学电子科学与工程学院,湖南,长沙,410073
  4. 空军预警学院,湖北,武汉,430019
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China for Distinguished Young Schoolars (No.60925005);Youth Fund of National Natural Science Foundation of China (No.61102169)
- DOI：10.3969/j.issn.0372-2112.2015.05.003
  CLC： TN957
- Published：2015
- 稿件说明：
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WANG Ze-tao, DUAN Ke-qing, XIE Wen-chong, et al. A Joint Sparse Recovery STAP Method Based on SA-MUSIC[J]. Acta Electronica Sinica, 2015, 43(5): 846-853.
DOI：

WANG Ze-tao, DUAN Ke-qing, XIE Wen-chong, et al. A Joint Sparse Recovery STAP Method Based on SA-MUSIC[J]. Acta Electronica Sinica, 2015, 43(5): 846-853. DOI： 10.3969/j.issn.0372-2112.2015.05.003.

摘要

基于子空间扩展多重信号分类(SA-MUSIC)理论对杂波空时二维谱进行联合稀疏恢复

实现小样本情况下空时自适应处理(STAP)性能的显著提升.首先

提出空时导向矢量相关性模型

利用该模型分析杂波在空时二维平面上的稀疏本质

解释用部分空时导向矢量近似整个杂波子空间的合理性.其次

提出基于SA-MUSIC理论的联合稀疏恢复STAP算法(SA-MUSIC-STAP)

该算法仅需极少训练样本便可实现对杂波协方差矩阵的准确估计

并实现有效的杂波抑制.仿真实验验证了SA-MUSIC-STAP算法的有效性.

Abstract

Clutter spectrum in space-time domain is jointly recovered based on subspace-augmented multiple signal classification theory (SA-MUSIC).The performance of space-time adaptive processing (STAP) under small sample size is greatly improved.Firstly

the sparse nature of clutter in space time domain is analyzed using the space-time steering vector correlation model

and the reason of using few space-time steering vectors to represent the whole clutter subspace is given.Secondly

an algorithm named as SA-MUSIC-STAP is proposed to estimate the clutter covariance matrix with much less training samples

then the clutter is effectively suppressed by the new algorithm.Simulation results verified the effectiveness of SA-MUSIC-STAP.

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