A Novel HRWS Imaging Algorithm with Velocity Compensation for Spaceborne Multi-channel SAR

被引：0
|
作者：
Zhang, Liru [1 ]
Wang, Ziwei [1 ]
Wei, Zixiang [1 ]
Sun, Jinping [1 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
来源：
PROCEEDINGS OF THE 2019 14TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA 2019) | 2019年
关键词：
High Resolution Wide Swath (HRWS); velocity Compensation; omega-k algorithm; Contrast Optimization Autofocus (COA); SYNTHETIC-APERTURE RADAR;
D O I：
10.1109/iciea.2019.8833988
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In Spaceborne Synthetic Aperture Radar (SAR), the equivalent Velocit of radar varies with range. When classic omega-k algorithm is used to process spaceborne data, the farther distance from reference range, the worse azimuth focusing quality will limit the width of swath greatly. In this paper, an improved omega-k algorithm is proposed to solve the imaging in high resolution wide swath (HRWS) SAR, the key idea of which is to realize equivalent velocity compensation from the received ground echoes by using the Contrast Optimization Autofocus (COA) to estimate the equivalent velocity. The experiment demonstrates that the improved algorithm can process the wide swath spaceborne SAR data accurately and effectively.
引用
收藏
页码：2182 / 2186
页数：5
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