The sliding poly- SAR image processing method of ultra wide band based on high-order sub-aperture CS

The present invention provides a kind of sliding poly- SAR image processing method of the ultra wide band based on high-order sub-aperture CS.Technical solution is: carrying out sub-aperture division to echo data, imaging is carried out to each sub-aperture echo using high-order sub-aperture CS process, it completes to reset after frequency is handled in Doppler domain and carries out sub-aperture stitching, it finally completes azimuth focus using BAS algorithm to be imaged, to complete the sliding poly- SAR imaging of ultra wide band.The present invention be able to solve ultra wide band situation glide poly- SAR efficiently, high-precision imaging problem.