红外与激光工程, 2017, 46 (7): 0706003, 网络出版: 2017-09-21   

激光近程探测中目标表面的散射特性

Scattering properties of target surface in the laser short-range detection
作者单位
南京理工大学 机械工程学院, 江苏 南京, 210094
摘要
在激光引信中, 脉冲激光对目标的探测与识别是激光引信近程探测技术中的一个关键技术点, 而目标的表面反射特性对探测的影响是激光近程探测高效毁伤与精确打击目标的主要研究关键。目标的表面粗糙度以及附着物对激光回波信号的强弱影响较大, 因此, 需对激光近程探测过程中不同粗糙度目标表面所表现的反射特性进行研究。首先通过仿真得到回波信号模型, 再进行不同粗糙度表面回波功率实验对仿真结果进行验证。实验选用不同表面粗糙度的靶板, 并采用了改变角度、改变距离并同时改变角度和距离的模式来观测得到的电压曲线, 获得最终结果。
Abstract
In laser fuze, target detection and recognition by pulse laser is a key technical point in laser fuze short-range detection technology, and the influence of the target′s surface scattering properties on detection is a major research key in efficient damage and precise strike on targets through laser short-range detection. The target′s surface roughness and the attachment largely influence the strength of laser echo signal. Therefore, it is necessary to study the scattering properties shown by target surfaces with different roughness during laser short-range detection. Firstly, echo signal model was obtained through simulation, and then echo power experiment on surfaces with different roughness was carried out to verify the simulation results. In the experiment, target plates with different surface roughness were used, and methods such as changing the angle, changing the distance, etc., were adopted to observe the voltage curve, thereby obtaining the final result.

张祥金, 沈娜, 胡鑫, 宋健. 激光近程探测中目标表面的散射特性[J]. 红外与激光工程, 2017, 46(7): 0706003. Zhang Xiangjin, Shen Na, Hu Xin, Song Jian. Scattering properties of target surface in the laser short-range detection[J]. Infrared and Laser Engineering, 2017, 46(7): 0706003.

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