逆合成孔径成像激光雷达系统建模及成像仿真  

System Modeling and Imaging Simulation of ISAIL

作　　者：何劲[1] 张群[1,2] 杨小优[1] 封同安[1] 郑万泽[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077 [2]复旦大学波散射与遥感信息国家教育部重点实验室,上海200433

出　　处：《系统仿真学报》2012年第3期632-637,共6页Journal of System Simulation

基　　金：国家自然科学基金(60971100);陕西省电子信息系统综合集成重点实验室基金(200903B);陕西省自然科学基础研究计划项目(2007F28)

摘　　要：逆合成孔径成像激光雷达能突破传统成像激光雷达扫描体制的限制,实现对运动目标实时高分辨成像,对运动目标的探测与识别具有重要意义。分析了逆合成孔径成像激光雷达的高分辨成像原理,并综合考虑系统结构、大气衰减、背景噪声、目标散射特性等多方面因素,建立了仿真模型,对成像流程与分辨能力进行了详细分析。仿真实验证明了逆合成孔径成像激光雷达具有优于微波波段逆合成孔径雷达的成像效果以及文中建立的仿真模型的有效性。Inverse synthetic aperture imaging LADAR（ISAIL） can break through the limitation of conventional imaging laser radar operating with scan mode,and realize high resolution imaging for the moving targets in time.Therefore,ISAIL is very important for target detection and recognition.The imaging theory of ISAIL was analyzed and the simulation system based on the consideration of system structure,atmosphere attenuation,background noise and target scatter characteristic was established.The imaging simulation was finished and the imaging flow and resolution capability were analyzed.The simulation shows that the images which are achieved by the ISAIL system have higher quality than the microwave inverse synthetic radar system,and prove the validity of simulation system.

关 键 词：逆合成孔径成像激光雷达 系统建模 成像仿真 运动目标 雷达成像 

分 类 号：TN957[电子电信—信号与信息处理]