朗伯锥柱激光后向二维散射成像仿真算法研究  

Research on Simulation Algorithm for Laser Backward 2D Scattering Imaging of Lambertian Cone-cylinder

作　　者：宫彦军 何雪梅 毕冬梅[2] GONG Yanjun;HE Xuemei;BI Dongmei(School of Electronics and Information Engineering,Hunan University of Science and Engineering,Yongzhou 425199,China;College of Science,Changchun University,Changchun 130022,China)

机构地区：[1]湖南科技学院电子与信息工程学院,湖南永州425199 [2]长春大学理学院,长春130022

出　　处：《长春大学学报》2019年第12期28-32,共5页Journal of Changchun University

基　　金：国家自然科学基金项目(61771385);吉林省教育厅项目(2018LY508L27);湖南省自然同学基金项目(13JJ6079);湖南省教育厅项目(12A054)

摘　　要：二维成像可以反映目标的材料特性和形状,对目标的识别具有重要的意义。利用激光雷达方程推导出椎柱的后向散射光强的表达式,通过表面积分和引进的矩形函数可得到在成像面上成像单元处的强度。计算成像面处成像单元的强度,需要将锥柱所在目标坐标系变换到后向方向的成像坐标系。本文给出两种成像方法:统一积分法和差异积分法,并分析这两种方法的差异。Two-dimensional imaging can reflect the material properties and shape of the target,which has important significance for the recognition of the target. Lidar equation is used to derive the expression of the backscattered light intensity of the target,and the intensity at the imaging unit on the imaging plane can be obtained by surface integration and the introduced rectangular function. The calculation of the intensity of the imaging unit at the imaging plane requires to transform the target coordinate system of the cone-column to the imaging coordinate system in the backward direction. In this paper,unified integration method and differential integration method are presented and the differences between them are analyzed.

关 键 词：朗伯体 锥柱 统一积分法 差异积分法 

分 类 号：O43[机械工程—光学工程]