The application discloses a kind of real
synthetic aperture imaging methods for multichannel
radar forward-looking imaging, first, the echo data of the region to be imaged is obtained, second, the data obtained is compressed in range direction pulse, then the data after
pulse compression is respectively processed in synthetic aperture and real aperture, for synthetic aperture dimension, using BP
algorithm is focused in
azimuth direction, and the results of each channel are incoherently accumulated, to obtain left-right ambiguous image, for real aperture dimension, the imaging scene is divided into grid, constructs guide matrix, reconstructs target
scattering coefficient to realize super-resolution imaging, finally, the results of two dimensions are multiplied, to obtain non-ambiguous and super-resolution result.The method of the application fully utilizes the advantages of
high resolution obtained by platform motion synthetic aperture in squint region and
high resolution obtained by
azimuth real aperture super-resolution in forward-looking region, overcomes the problem of single-base
radar forward-looking imaging
ambiguity and
low resolution, and realizes multichannel
radar non-ambiguous forward-looking high-resolution imaging.