Dynamic adaptive correction of radar-tracking images

1Sytnik, OV, 1Efimov, VB, 1Tsymbal, VN, 1Kabanov, AV
1A.I. Kalmykov Center for Radio Physical Sensing, NAS of Ukraine and National Space Agency of Ukraine, Kharkiv, Ukraine
Kosm. nauka tehnol. 2007, 13 ;(Supplement1):074-077
Publication Language: Russian
We consider the problems of construction of adaptive algorithms for synthesizing radar-tracking images of spreading surface on the basis of signals of a coherent onboard radar. The offered algorithm belongs to the type of self-adapting algorithms in which the information on trajectory mistakes is taken directly from the reflected signal. As the information parameters, we use the estimation of displacement of a Doppler spectrum on the interval of synthesizing which is averaged on inclined range together with its supreme derivatives. This provides the possibility of automatic correction of the images caused not only by mistakes in speed of flight of the carrier, mistakes in the acceleration and speed of acceleration change. The results of synthetic aperture radar signals are given. Some features of the algorithm operation in various conditions are discussed.
Keywords: automatic correction, doppler spectrum, mistakes
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