A DHIP Algorithm for SAR Satellite Imaging Planning
2011
The emergence of earth observing satellite with Synthetic Aperture Radar(SAR) onboard provides a significant instrument to obtain geo-space information.This paper studies rightly on the SAR satellite imaging planning problem.Firstly,the general imaging process of SAR satellite is described to illustrate that the methods pertinent to optical satellite imaging planning are no longer suitable for the problem of a SAR satellite imaging planning.Secondly,the main influential constraints of SAR satellite are induced.Based on that,an approach called DHIP(Double Hierarchy Insert Planning) is proposed and described detailedly.The main idea of this method is to form an optimized scheme by tentatively inserting every candidate imaging request through two hierarchies,which are the hierarchy of SAR opening and closing,and that of photographing,by a checking while constructing method.The final experimental results show that the DHIP algorithm works fast and is able to get a satisfying scheme under general circumstances.
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