航天器工程2018，Vol.27Issue(6)：41-47,7.DOI:10.3969/j.issn.1673-8748.2018.06.006
星载SAR在轨成像及舰船目标检测方法
Space-borne SAR On-orbit Imaging and Ship Target Detection Method
摘要
Abstract
Aiming at the problems of the real-time performance, effectiveness and energy efficiency ratio of the existing on-orbit SAR imaging and target detection are low, a high energy efficiency ratio spaceborne SAR imaging based on high-speed parallel hybrid FFT array and ship target detection method based on local dimensionality reduction statistical classification is proposed, and the error model of calculation accuracy and calculate the fix/float data type automatically is established, while effectively reducing the hardware resources, which ensures the realtime performance of spaceborne SAR imaging and ship target detection and calculation.The feasibility and effectiveness of the method are verified by Radarsat-1 remote sensing satellite data on the official FPGA development board of xilinx.The efficiency of this method is 4 times higher than that of the FPGA+DSP traditional classical processing architecture, which can provide reference for on-orbit real-time processing design.关键词
星载SAR在轨成像/遥感舰船目标检测/在轨实时处理/现场可编程门阵列/能效比Key words
space-borne on-orbit SAR imaging/remote ship target detection/real-time processing/FPGA/energy efficiency ratio分类
航空航天引用本文复制引用
李宗凌,汪路元,禹霁阳,郝梁,程博文..星载SAR在轨成像及舰船目标检测方法[J].航天器工程,2018,27(6):41-47,7.基金项目
国家自然科学基金(91438102) （91438102）
