Unambiguous Reconstruction and High-Resolution Imaging for Multiple-Channel SAR and Airborne Experiment Results

被引：25
|
作者：
Jing, Wei [1 ]
Xing, Mengdao [1 ]
Qiu, Cheng-Wei [2 ]
Bao, Zheng [1 ]
Yeo, Tat-Soon [2 ]
机构：
[1] Xidian Univ, Natl Lab Radar Signal Proc, Xian 710071, Peoples R China
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Radar & Signal Proc Lab, Singapore 117576, Singapore
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2009年 / 6卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Azimuth ambiguity; multiple channel; radar imaging; synthetic aperture radar (SAR); AZIMUTH AMBIGUITIES; RADAR IMAGES; CONSTELLATION; SYSTEMS;
D O I：
10.1109/LGRS.2008.2008825
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Azimuth ambiguity occurs in synthetic aperture radar (SAR) systems due to the well-known constraint of minimum antenna area, particularly at high resolutions and wide swaths. A space time domain method can be utilized to remove this ambiguity if the multiple-channel data are available. In this letter, a modified approach is presented to determine the filter weight vectors. This approach was successfully applied to the real data, which were collected by an experimental airborne multiple-channel SAR system. The channel imbalance and the error in antenna phase center position are analyzed in detail.
引用
收藏
页码：102 / 106
页数：5
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