一种前视合成孔径激光雷达成像系统

提出了一种新型的基于激光收发阵列的前视合成孔径激光雷达(SAL)成像系统。给出了系统的结构模型,分析了系统成像原理,详细推导了点目标的回波模型和适用于前视SAL的ECS算法,最后通过Matlab对6点目标的情况进行了成像仿真,对点目标峰值中心的64×64点切片和方位向、距离向包络进行了详细分析,结果表明该系统可以有效地对雷达前视场景进行成像。

Noval Forward-looking SAL Imaging System

Presented is a noval forward-looking synthetic aperture laser radar (SAL) imaging system based on laser transceiver array. Firstly, the system architecture model was given and the imaging principles were analyzed. The target echo model and Extended Chirp Scaling algorithm(ECS) were proposed for the forward-looking SAL. Lastly, the 6-point target imaging system was simulated by Matlab, 64×64 points slice of the target peak center and envelope of azimuth and range were analyzed in detail, and simulation results demonstrate the validity of the system.