Airborne Bistatic SAR Echo Simulator Based on Multi-GPU Platform

作     者：Hongbing Chen Yulin Huang Jianyu Yang School of Electronic Engineering University of Electronic Science and Technology of China Chengdu Sichuan 610054 P.R.China 

会议名称：《2011 CIE International Conference on Radar(RADAR 2011)》

会议日期：2011年

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 081105[工学-导航、制导与控制] 081001[工学-通信与信息系统] 081002[工学-信号与信息处理] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 

关 键 词：SAR echo simulator GPU CUDA parallel computing. 

摘      要：Synthetic Aperture Radar（SAR） echo simulator plays an important role in the development, debugging and performance evaluation of radar system. In this paper, an airborne bistatic SAR echo simulation algorithm based on CUDA architecture is proposed . Then a parallel computing platform with GPUs controlled by CPU threads is presented to achieve the echo simulator. The results show that the speed of the echo simulator based on Multi-GPU is 300 times faster than CPU. Multi-GPU platform has the advantage of computing parallelism, which greatly improves the speed of SAR signal processing.