Influence of an error and correlation of a phase evaluation of reference signal on a SAR image quality in a method of an autofocusing using point radiocontrast targets

Abstract:
The paper contains results of research influence of accuracy estimation of a reference signal phase used for an autofocusing of the synthesized image and error correlation interval on SAR image quality. It is shown, while an error correlation interval of a phase estimation essentially smaller than time of synthesizing critical magnitude of an error of a phase is 50deg…60deg. Contrariwise the synthesized image holds initial shape when an interval of correlation greater than a half synthesizing interval even at an error of 180deg.