IMPLICIT DIGITIZATION FOR SHAPING RADAR IMAGES BY THE METHOD OF MATCHED RECEPTION IN SYSTEMS WITH SYNTHETIC APERTURE

摘要

A new approach is suggested for going from analog algorithms of reconstruction of two-dimensional signals (formation of images) to digital algorithms with simultaneous correction of phase fluctuations of different origin in the signal observed. The approach is based on the implicit digitization concept, with the use of zero manifolds of the trajectory signal spectrum. The paper includes a transformation of the analog algorithm for matched processing of trajectory signal, when creating the radar image in a system with synthetic aperture into digital form — not only with regard for the attributes of its two-dimensional spectrum (the totality of zero trajectory elements), but also depending on the scatter characteristic of the irradiated surface.