Digitally-Spotlighted Subaperture SAR Image Formation Using High Performance Computing

摘要

This paper is concerned with the implementation of the SAR wavefront reconstruction algorithm on a high performance computer. For this purpose, the imaging algorithm is reformulated as a coherent processing(spectral combination) of images that are formed from a set of subapertures of the available synthetic aperture. This is achieved in conjunctioin with extracting the signature of a specific target region (digital spotlighting). Issues that are associated with implementing the algorithm on SMP-HPCs and DMP-HPCs are discussed. The results using the FOPEN P-3 SAR data are provided.