A study of SAR signal analysis and processing in sliding spotlight mode

This paper introduces prominently the principle of sliding spotlight mode SAR and analyses its particularities including synthetic aperture time and azimuth resolution based on the difference between the mode and other modes such as strip mode and spotlight mode. The wavenumber algorithm is represented combining with the linear item of Doppler centroid frequency is defined and removed, furthermore, the simulation have been carried through and the results validate the algorithm.