Clutter suppression and ground moving target imaging approach for hypersonic vehicle borne multichannel radar based on two-step focusing method

被引：12

作者：

Wang, Yu ^{[1
]}

Cao, Yunhe ^{[1
]}

Wang, Shenghua ^{[1
]}

Su, Hongtao ^{[1
]}

机构：

[1] Xidian Univ, Natl Lab Radar Signal Proc, Xian 710071, Shaanxi, Peoples R China

来源：

DIGITAL SIGNAL PROCESSING | 2019年 / 85卷

基金：

中国国家自然科学基金;

关键词：

Hypersonic vehicle; Multichannel; Clutter suppression; Chirp Fourier transform; Parameter estimation; Ground moving target imaging; FRACTIONAL FOURIER-TRANSFORM; HIGH-RESOLUTION; KEYSTONE TRANSFORM; RADON-TRANSFORM; SAR; ALGORITHM; DESIGN; HYBRID; SYSTEM; GMTI;

D O I：

10.1016/j.dsp.2018.11.008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a novel clutter suppression and ground moving target imaging approach is proposed for hypersonic vehicle (HSV) borne multichannel (MC) synthetic aperture radar (SAR) system. Compared with the traditional MC SAR ground moving target indication (GMTI) methods, the proposed algorithm can suppress clutter and decrease the moving target energy loss based on the improved MC clutter suppression method in the chirp Fourier transform (CFT) domain. Moreover, the moving target can be accurately focused by compensating the range curvature and the third order phase item. In addition, the motion parameters can be estimated precisely and the moving target can be focused accurately. Finally, the effectiveness of the proposed method is validated by the simulation examples. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：62 / 76

页数：15

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