全尺寸目标激光脉冲后向散射回波功率测定和建模

运用粗糙面散射、激光脉冲散射理论,结合复杂目标粗糙表面相关建模参数,建立用于计算全尺寸复杂目标激光脉冲后向散射功率的理论模型.实验测量一种空中缩比目标模型后向散射激光脉冲回波功率,获取该缩比目标激光脉冲后向散射功率随接受天顶角的变化曲线.比较理论建模与实验测量数据,分析实验误差,证明了该理论模型的正确性.将建立的理论模型进一步应用于计算非合作空间全尺寸目标的激光脉冲回波功率.计算结果能够预估空间目标的激光散射特征,解决一些关于空间目标激光脉冲光学特征工程的应用问题.

Modeling and Measuring the Pulse Laser Scattering Echo Power from Whole Dimension Target

A theoretical model is presented which computes the pulse laser scattering echo power from the whole dimension target by using the theory of rough surface scattering and of pulse laser scattering combined with the modeling parameter of complex rough surface.The directional figure of pulse laser backscattering echo power is given through the measurement of the pulse laser backscattering echo power of the aerial complex scale-model.An analysis of the experimental error by comparing the theoretical results with experimental data proves that this model is correct.Computational results of the pulse laser backscattering echo power from non-cooperative complex space target by the model can pre-estimate the laser scattering characteristic of space target and solve some problems of engineering application about the pulse laser scattering from space complex targets.