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

Konferenz: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
02.06.2008 - 05.06.2008 in Friedrichshafen, Germany

Tagungsband: EUSAR 2008

Seiten: 4Sprache: EnglischTyp: PDF

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Broukhansky, Alexander (Moscow Aviation Institute, Russian Federation)

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.