Computational synthetic aperture radar (cSAR): a flexible signal simulator for multichannel SAR systems

被引:10
作者
Allan, Jeremy M. [2 ]
Collins, Michael J. [1 ]
Gierull, Christoph [3 ]
机构
[1] Univ Calgary, Dept Geomat Engn, Calgary, AB T2N 1N4, Canada
[2] Sky Res Inc, Palo Alto, CA 94303 USA
[3] Def Res & Dev Canada, Ottawa, ON K1A 0Z4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
PARAMETER-ESTIMATION; POLARIMETRIC SAR; SCATTERING; STATISTICS; MODEL;
D O I
10.5589/m10-048
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
This paper presents an overview of the theory and capabilities of computational synthetic aperture radar (cSAR), a time-domain SAR system simulator. cSAR offers a robust design of the SAR system and the scene to be imaged, including arbitrary trajectories for both the SAR platform and moving targets, flexible antenna configuration and characterization, and user-specified probability density functions and correlation characteristics of the scene's underlying scatterers. A number of system, clutter, and target scenarios are simulated with cSAR and presented in this paper. In particular, two airborne SAR systems are simulated, namely the Convair-580 system and the Intermap Technologies Inc. STAR-3i, and the simulated system characteristics are demonstrated to be consistent with theory. A wide variety of clutter characteristics are simulated and shown to be consistent with the K distribution model. Additionally, several targets moving at different speeds and directions in a range of clutter fields are simulated, and the results show that the characteristics of the simulated moving targets are consistent with real data.
引用
收藏
页码:345 / 360
页数:16
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