A comparison of SAR imaging algorithms for high-squint angle trajectories

被引：0
|
作者：
Horvath, Matthew S. [1 ]
Rigling, Brian D. [1 ]
机构：
[1] Wright State Univ, Dept Elect Engn, Dayton, OH 45435 USA
来源：
ALGORITHMS FOR SYNTHETIC APERTURE RADAR IMAGERY XVIII | 2011年 / 8051卷
关键词：
SAR; squint; polar format; backprojection; scene size limits; taylor expansion;
D O I：
10.1117/12.884879
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
This paper explores the effect of squint angle on the phase errors introduced by the linear phase assumption in the polar format algorithm for SAR imaging. The maximum scene radius for an allowable phase error is derived as a function of squint angle and other parameters. Simulated phase histories for a variety of squint angles are generated and imaged to demonstrate the bound and the effects encountered when it is exceeded.
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页数：9
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