微型SAR成像系统分析  

Analysis of miniature SAR imaging system

作　　者：潘勇先[1] 刘丽[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088

出　　处：《雷达与对抗》2017年第1期1-4,共4页Radar & ECM

摘　　要：微型SAR分辨率高,体积小,重量轻,受到广泛重视,将广泛应用于无人机侦察平台。介绍了调频连续波SAR的去调频信号模型,重点推导了多普勒误差的补偿方法,并推导出改进的距离-多普勒成像算法。通过仿真和实时成像验证了该算法的正确性和可行性。Miniature synthetic aperture radar（ SAR）,featuring high resolution,small size and light weight,attracts extensive attention and will be widely used in the reconnaissance platform of the UAVs. The model of the de-chirp signals is introduced for the FMCW SAR with emphasis on the derivation of the Doppler error compensation. Besides,the modified range-Doppler imaging algorithm is derived,being verified to be correct and feasible via the simulation and the real-time imaging.

关 键 词：微型SAR 雷达成像 调频连续波 改进的距离-多普勒算法 

分 类 号：TN958[电子电信—信号与信息处理]