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.
出处
《系统仿真学报》
CAS
CSCD
北大核心
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)
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
inverse synthetic aperture imaging LADAR（ISAIL）
system modeling
imaging simulation
moving targets
radar imaging
