脉冲激光照射下目标散射特性研究

The Mathematical Model of the Target Transient Response of Laser Scattering

简要介绍了脉冲激光照射下目标散射特性的研究,首先建立目标和光源的相对方位,再把目标划分为许多个强散射中心面元对目标的几何模型进行解析,然后用三参数模型法对目标表面涂料的反射能力进行了描述,通过几何光学法得到脉冲激光照射下目标散射特性的理论模型。基于建立的理论模型对目标进行了统计分析,主要分析了目标的数学期望、方差、峰度、偏度统计量,利用自适应积分算法得出了目标散射光照度。最后,对脉冲激光照射下目标散射特性进行了仿真和分析,认为在脉冲激光照射下不可能从光照度直接进行目标识别,需要在频域进行分析处理和特征提取。

The research of the target transient response is presented. The theory model of the TTR （Target Transient Response） is built based on the relative direction of target and lamp house, the targefs geometry model is described by many scatter arears,the superstratum is described by the three-parameter model, based on which the targefs statistics analysis result is educed, including the expectation, variance, kurtosis, skewness of the object. The integral expression of the target transient response is resulted by making use of the autoadaptable integral arithmetic.