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目标激光散射特性的研究对设计和完善激光目标探测系统具有重要价值。本文从激光雷达基本方程出发,找到激光雷达散射截面与材料的双向散射分布函数之间的关系。根据材料的双向散射分布函数实验室测量结果,理论上估算了锥、柱、裙结构的全尺寸模型的激光雷达散射截面。对这种模型的现场测量结果表明,所用的理论估算方法是合理的。最后分析了测量和估算过程可能引入的误差。
The research on the target laser scattering characteristics is of great value to the design and improvement of the laser target detection system. Based on the basic equations of laser radar, this paper finds the relationship between the laser radar cross section and the two-way scattering distribution function of materials. According to the laboratory measurement results of biaxial scattering distribution function of materials, the laser radar cross section of full-scale model of cone, column and skirt structure is theoretically estimated. The field measurements of this model show that the theoretical estimation method used is reasonable. Finally, the possible errors introduced by the measurement and estimation process are analyzed.