GMTI processing for multi-channel high-resolution wide-swath SAR systems

被引：3
|
作者：
Hou, Lili [1 ]
Zhang, Qian [1 ]
机构：
[1] Shijiazhuang Tiedao Univ, 17 North Second Ring Rd, Shijiazhuang 050043, Hebei, Peoples R China
来源：
REMOTE SENSING LETTERS | 2019年 / 10卷 / 01期
基金：
中国国家自然科学基金;
关键词：
RADAR BACKSCATTER;
D O I：
10.1080/2150704X.2018.1520404
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
Ground moving target indication (GMTI) is an important application of future multi-channel high-resolution wide-swath (MC-HRWS) synthetic aperture radar (SAR) system. This paper improves the extended displaced-phase-center antenna (EDPCA) method for efficient GMTI with a MC-HRWS SAR System. This processing method called improved EDPCA is derived in this paper and is applied to simulated data and real data in order to validate the theory. Compared with EDPCA, the improved EDPCA can decrease the degrees of freedom (DOFs) required by GMTI processing and the false alarm rate induced by the ambiguous image of moving target. In addition, signal-to-noise ratio (SNR) loss of moving target caused by linear range cell migration (RCM) can be avoided without a priori knowledge of the radial velocity.
引用
收藏
页码：21 / 29
页数：9
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