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 operation 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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Supported by the Chinese Postdoctoral Science Foundation (No. 20080440300) and the Fundamental Research Funds for the Central Universities.
Communication author: Sun Bing, born in 1981, male, Ph.D..
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Sun, B., Zhou, Y. & Chen, J. Cross-range resolution of synthetic aperture radar based on diving model. J. Electron.(China) 28, 71–76 (2011). https://doi.org/10.1007/s11767-011-0406-2
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DOI: https://doi.org/10.1007/s11767-011-0406-2