目标激光回波散斑的时空域探测方法研究

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.