| 摘要 |
FIELD: radio engineering, processing of signals of airborne radar with synthetic aperture of antenna. SUBSTANCE: given procedure makes it possible to diminish restoration time on basis of additional determination of some uncontrolled changes of phase of path signal of radar with synthetic aperture that is constant for all ranges with fixed azimuth. Correction coefficient is computed with due account of this change of phase. Procedure of correction of uncontrolled phase distortions of path signal of radar with synthetic aperture consists in formation and preservation of two-dimensional spectrum of received signal, in limitation of this spectrum by dimension of carrier, in computation of direct Fourier transform of spectrum of received signal, in finding of correction phase coefficient, in usage of it for correction of phase of preserved two- dimensional spectrum of received signal and in generation of two-dimensional spectrum of received signal of due approximation by way of computation of inverse two-dimensional Fourier transform. All specified operations are repeated many times. Correction phase coefficient is computed by formula given in application. EFFECT: diminished time of restoration of radar image. 1 cl
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