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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。
In the laser fuze, the detection and recognition of the target by pulsed laser are one of the key points in the proximity detection technology of laser fuze, and the influence of the surface reflection characteristic of the target on the detection is the main target of the laser short-range detection with high efficiency damage and precision attack Research key. The target surface roughness and attachments have a great influence on the intensity of the laser echo signal. Therefore, it is necessary to study the reflection characteristics of the target surfaces with different roughness during the laser short range detection. First, the echo signal model is obtained through simulation, and then the echo power experiment with different roughness surface is carried out to verify the simulation results. Experiments using different surface roughness of the target plate, and used to change the angle, change the distance and change the angle and distance mode to observe the voltage curve obtained, the final result.