IMAGE BASED APPROACH FOR TARGET DETECTION AND ROBUST TARGET VELOCITY ESTIMATION METHOD FOR MULTI-CHANNEL SAR-GMTI

被引:4
|
作者
Suwa, Kei [1 ]
Takahashi, Ryuhei [1 ]
Wakayama, Toshio [1 ]
Nakamura, Shohei [2 ]
Iwamoto, Masafumi [2 ]
机构
[1] Mitsubishi Electr Corp, Informat Technol R&D Ctr, Tokyo, Japan
[2] Mitsubishi Electric Corp, Kamakura Works, Tokyo, Japan
关键词
Multi-channel SAR; DPCA; ATI; GMTI; Velocity Estimation; SYNTHETIC-APERTURE RADAR;
D O I
10.1109/IGARSS.2013.6723210
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
This paper presents new algorithms for moving target detection and velocity estimation for multi-channel SAR (Synthtic Aperture Radar) system. The algorithms are derived as the extensions of conventional DPCA (Displaced Phase Center Antenna) and ATI (Along Track Interferometry) to the multi-channel case. The proposed multi-channel DPCA based on orthogonal projection completely suppresses the static clutter even with the presense of the azimuth ambiguity. The multi-channel ATI utilizes the phase differences of all the pairs of the channels to estimate the target radial velocity. The combination of the two, which we call multi-channel DPCA-ATI, is also proposed as the more robust velocity estimation method.
引用
收藏
页码:2035 / 2038
页数:4
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