Due to the limited scenes that synthetic aperture radar(SAR)satellites can detect,the full-track utilization rate is not *** of the computing and storage limitation of one satellite,it is difficult to process large am...
详细信息
Due to the limited scenes that synthetic aperture radar(SAR)satellites can detect,the full-track utilization rate is not *** of the computing and storage limitation of one satellite,it is difficult to process large amounts of data of spaceborne synthetic aperture *** is proposed to use a new method of networked satellite data processing for improving the efficiency of data processing.A multi-satellite distributed SAR real-time processing method based on Chirp Scaling(cs)imagingalgorithm is studied in this paper,and a distributed data processing system is built with field programmable gate array(FPGA)chips as the *** from the traditional csalgorithm processing,the system divides data processing into three *** computing tasks are reasonably allocated to different data processing units(i.e.,satellites)in each *** method effectively saves computing and storage resources of satellites,improves the utilization rate of a single satellite,and shortens the data processing ***-3(GF-3)satellite SAR raw data is processed by the system,with the performance of the method verified.
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