Synthetic aperture radar image processing system

Abstract From the Canadian patent

There is described a synthetic aperture radar (SAR) image processing system of the type in which an image is reproduced from a received SAR data through range compression, range curvature compensation and azimuth compression using a range reference function, a range curvature compensation function and an azimuth reference function, respectively. In the new system described the azimuthal-compressed data is divided into a plurality of look components. The correlation values between two look image signals selected from among the look components are developed. Then, the Doppler frequency variation rate Fd is determined based on a relative shift amount (i.e. image shift) giving correlation …