Cross-range resolution of synthetic aperture radar based on diving model |
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Authors: | Bing Sun Yinqing Zhou Jie Chen |
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Affiliation: | School of Electronics and Information Engineering, Beihang University, Beijing 100191, China |
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Abstract: | This paper concentrates on the cross-range resolution of Synthetic Aperture Radar (SAR) based on diving model. In comparison to the azimuth resolution, the cross-range resolution can manifest the two-dimensional resolution ability of the imaging sensor SAR correctly. The diving model of SAR is an extended model from the conventional stripmap model, and the cross-range resolution expression is deduced from the equivalent linear frequency modulation pulses’ compression. This expression points out that only the cross-range velocity component of the horizontal velocity contributes to the cross-range resolution. Also the cross-range resolution expressions and the performance of the conventional stripmap operation, squint side-look opera-tion and beam circular-scanning operation are discussed. The cross-range resolution expression based on diving model will provide more general and more accurate reference. |
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Keywords: | Key words Synthetic Aperture Radar (SAR) Cross-range resolution Diving model Velocity component |
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