The fast SAR processing algorithms on the base declaration of the signals in the basis of turning vectors

Abstract

The problem of real-time high-resolution SAR imaging is actually for numerous applications of remote sensing. A lot of effective fast algorithms for SAR imaging are known today. In most cases the algorithms provide a reduction of computation cost as a result of simplification SAR imaging algorithms or/and reduction of spatial resolution. Often it is consequence of the migration or azimuth variation of the SAR signal parameters that are typically for high resolution SAR. In the paper authors propose to use specific declaration of the SAR signals in basis of N turning vectors. The declaration provides the followed digital processing without complex multiplications and sometimes the increasing of an accuracy of the SAR processing. In the paper we also analyze sequentially different algorithms based on the approach.