COSMO-SKYMED DI SECONDA GENERAZIONE INNOVATIVE ALGORITHMS AND HIGH PERFORMANCE SAR DATA PROCESSORS

摘要

In the frame of COSMO-SkyMed di Seconda Generazione (CSG) programme, extensive research activities have been conducted on SAR data processing, with particular emphasis on high resolution processors, wide field products noise and coregistration algorithms. As regards the high resolution, it is essential to create a model for the management of all those elements that are usually considered as negligible but alter the target phase responses when it is "integrated" for several seconds. Concerning the SAR wide-field products noise removal, one of the major problems is the ability compensate all the phenomena that affect the received signal intensity. Research activities are aimed at developing adaptive-iterative techniques for the compensation of inaccuracies on the knowledge of radar antenna pointing, up to achieve compensation of the order of thousandths of degree. Moreover, several modifications of the image coregistration algortithm have been studied aimed at improving the performences and reduce the computational effort.