Adaptive detection of range-spread targets in homo-geneous and partially homogeneous clutter plus subspace interference

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外文摘要：Adaptive detection of range-spread targets is consi-dered in the presence of subspace interference plus Gaussian clutter with unknown covariance matrix.The target signal and interference are supposed to lie in two linearly independent sub-spaces with deterministic but unknown coordinates.Relying on the two-step criteria,two adaptive detectors based on Gradient tests are proposed,in homogeneous and partially homoge-neous clutter plus subspace interference,respectively.Both of the proposed detectors exhibit theoretically constant false alarm rate property against unknown clutter covariance matrix as well as the power level.Numerical results show that,the proposed detectors have better performance than their existing counter-parts,especially for mismatches in the signal steering vectors.

外文关键词：

adaptive detectionsubspace interferenceconstant false alarm rateGradient testpartially homogeneous environ-ment

作者：

JIAN Tao、HE Jia、WANG Bencai、LIU Yu、XU Congan、XIE Zikeng

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作者单位：

Research Institute of Information Fusion,Naval Aviation University,Yantai 264001,China

Air Force Early Warning Academy,Wuhan 430019,China

基金：

National Natural Science Foundation of ChinaTaishan Scholar Project of Shandong ProvinceOutstanding Youth Innovation Team Program of University in Shandong Province

项目编号：

61971432tsqn2019091562019KJN031

出版年：

2024

DOI：

10.23919/JSEE.2023.000147

系统工程与电子技术(英文版)

中国航天科工防御技术研究院中国宇航学会中国系统工程学会中国系统仿真学会

系统工程与电子技术(英文版)

CSTPCD

影响因子：0.64

ISSN：1004-4132

年,卷(期)：2024.35(1)

参考文献量33