A Keystone Transform for Dual-Channel SAR Moving-Target Imaging

被引：0
|
作者：
Yao, Huang [1 ]
Lin, Zhang [1 ]
机构：
[1] China Three Gorges Univ, Coll Sci, Yichang 443002, Hubei, Peoples R China
来源：
ISTM/2009: 8TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6 | 2009年
关键词：
SAR; Keystone Transform; DPCA; CZT; MDCFT; FrFT;
D O I：
暂无
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：
The paper proposes a moving-target imaging method for dual-channel DPCA SAR which can remove linear and quadric range migration simultaneously by introducing a phase compensating component during Keystone. CZT-IFFT is exploited to improve computation efficiency. Moreover, the method exploits chirp parameters estimated by MDCFT joint slope parameters estimated by channel phase difference filtered in fractional Fourier domain to calculate velocity, acceleration and azimuth position of moving-target. Simulation results prove that the method is correct.
引用
收藏
页码：1750 / 1754
页数：5
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