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Circular-scanning Synthetic Aperture Radar (SAR) can quickly generate vast maps of earth's surface, providing precise positioning information by scene-matching approach. Although it has gained more attention to improve the imaging method, the quantitative comparison of the theory performance, between circular-scanning SAR and other classical imaging SAR mode, is obliviously performed in previous work...
Due to the self rotation and revolution of the earth and the satellite moving comparatively, the delay rate changes intricately and that affects correlation result when we use VLBI to detect Satellite. To solve the problem, a new method of delay-delay rate 2-D correlation is proposed which based on time-frequency 2-D correlation. This method applies ambiguity function calculation of time-frequency...
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