VELOCITY ESTIMATION OF THE MOVING TARGET FOR HIGH-RESOLUTION WIDE-SWATH SAR SYSTEMS

被引：0
作者：
Zheng, Hongchao [1 ]
Wang, Junfeng [1 ]
Liu, Xingzhao [1 ]
Gao, Yesheng [1 ]
Zhang, Linjian [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Shanghai, Peoples R China
来源：
2017 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2017年
关键词：
Synthetic aperture radar (SAR); high-resolution wide-swath (HRWS); velocity estimation; entropy;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
This paper presents a new scheme for moving target velocity estimation in conventional high-resolution wide-swath (HRWS) SAR systems. A generalized steering vector is designed for azimuth ambiguity suppression and the velocity parameter of the moving target is involved in this modified steering vector. The low PRF in HRWS-SAR systems will result in serious azimuth ambiguity. When the adopted parameter is matched with the real velocity of the moving target, its azimuth ambiguities will be suppressed clearly. Entropy can be used to measure the performance for azimuth ambiguity suppression. The velocity can be estimated through searching the matched velocity. Finally, the effectiveness of the proposed approach is verified by simulated multichannel SAR data.
引用
收藏
页码：2054 / 2057
页数：4
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