激光雷达目标特性中反射函数与反射系数的π关系  

π\|relation of reflectance function and reflectance factor in LIDAR system

作　　者：乔立杰[1] 杨洋[1] 刘立宝[1] 孙东松[1] 王晓欧[1] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001

出　　处：《红外与激光工程》1999年第5期60-62,51,共4页Infrared and Laser Engineering

摘　　要：利用反射函数、放射系数描述激光雷达目标特性具有重要意义，文中就激光雷达目标特性双向反射函数，双向反射系数，方向半球反射系数，后向反射率等各量的定义进行了论述，并利用红外辐射的基本原理推出了函数与系数，系数与系数的相互关系，得到了一般情况下双向反射函数与双向反射系数，方向半球反射系数与双向反射函数，方向半球反射系数与后向反射率的相互关系，解释了各量在满足一定条件下存在着一种π关系。It is important to describe the characteristics of LIDAR target using reflectance function and reflectance factor. In this paper the definitions of four conceptions used as LIDAR target characteristics are discussed, which are bidirectional reflectance distribution function (BRDF), bidirectional reflectance factor, direction\|hemisphere reflectance factor, and backreflectance ratio. Also the relations of these functions and factors, factors and factors are deduced using basic theory of infrared radiation, as a result, the relations of bidirectional reflectance function and bidirectional reflectance factor, direction\|hemisphere reflectance factor and bidirectional reflectance function, direction\|hemisphere reflectance factor and backreflectance ratio in usual are got. A π\|relation is found among these conceptions in some condition, so any one of them could educe each other using this relation. \;

关 键 词：激光雷达 反射函数 反射系数 π关系 目标特性 

分 类 号：TN958.98[电子电信—信号与信息处理]