Kravchenko weight functions in problems of restoration radar images at the modified synthesizing aperture

The modified algorithms of optimum space-time signal processing (STSP) in the synthetic-aperture radar (SAR) are synthesized. They provide improvement of significant are support significant rise above the radar images (RI) resolution in comparison with classical SAR. It is earlier shown, compression system ambiguity function (AmF) on range and an azimuth is accompanied by growth of AmF sidelobe which soften contrast RI area and deform the real form of the sounded objects. The simple solution of such problems can be received by application weight processing sounding signals and amplitude-phase distribution (APD) in the antenna array aperture. As weight functions (windows, distributions) of any classical functions (Hamming, Gaus, ...) can be use. In [3-4] weight windows on the basis atomic functions Kravchenko windows. In the work are developed influence of Kravchenko windows on quality of RI formation in SAR with modified algorithms STSP are researched. In work the algorithm modified STSP in SAR is synthesized. It provides possibility of formation RI with more higher resolution, than it is possible at use of classical algorithm. The kind modified AmF depends on relation σ°(F) / Nο = 20 (at unlimited increase of this relation the kind of AF aspires to delta-function). Thus the sizes of pixel decreases, and generated RI is characterised by bigger resolution. On such image the speckle dispersion increases also it demands the further processing. Its can be made both at a stage primary, and at a stage of secondary processing. Influence of weight windows on quality of formation RI with use classical windows, and Kravchenko new weight functions is analysed. The expediency use weight functions of Kravchenko, in specifically, window [h₂(x,Δ = 0,001)]^0,5,as V(t) and V(r) is proved.