目标激光回波散斑的时空域探测方法研究

Research on temporal and spatial domain target detection method of laser echo and speckle

针对现有脉冲激光回波目标识别方法不能准确反映目标姿态的关键问题,提出一种基于激光回波与散斑的时空域目标探测方法,重点建立了粗糙目标的脉冲激光回波与二维激光散斑模型,通过对平面、球面和非球面三种面型目标进行仿真,不仅可以映射出不同目标的面型和偏转角度,还可以区分目标的偏转方向,说明该方法的可行性与有效性。

Aiming at the key problem that the existing target recognition methods based on pulse laser cannot reflect the shape and position of the target,a time-space target detection method based on pulse laser echo and speckle is proposed.The models of one-dimensional laser echo and two-dimensional laser speckle in time and space domain are deduced.Based on the models,typical targets including planar,spherical and aspherical are employed to test models.The results show that the proposed method not only reflects the surface shape and deflected angle of targets,but also distinguishes the deflected direction of targets,which indicates that the feasibility and effectiveness of the method.