Y.A. Skobelev

An alternative SAR in which a first azimuth is basis and defines parameters of a base signal of concerted processing system is considered. The alternative SAR advantage is the possibility of making more precisely of image for new received echo signals without preservation and repeated processing of all echo signals. It is marked that potential azimuth resolutions of alternative and traditional SAR for a small angle interval of a synthesizing are being differed insignificantly. A constant distinction effect of parameters of trajectory signal and base signal because of trajectory instability and in the time of simulation is determined relatively to intensity and azimuth shift of point target image. The coefficients of image focusing distance shift and the image azimuth shifts are calculated. It is stated, that for equal coefficients of data distinction an image intensity decrease and azimuth shift because of radial velocities distinction of trajectory and base signals are equaled for the both versions of synthesized aperture. In addition in the alternative SAR an image is shifted along azimuth because of synthesized aperture asymmetric to basis. The dependences of relative intensity for major and side lobes of output signal of concerted processing system depended on parameter which is contained data distinction coefficients and radar parameters are obtained. A comparison with a traditional SAR in which a middle azimuth is basis is given.