基于改进Delaunay三角剖分的空间目标红外辐射成像方法  

IR radiation imaging method of space target based on improved Delaunay triangulation

作　　者：王彩云 赵焕玥 李晓飞 刘纯胜[2] 王立国 王佳宁 WANG Cai-yun;ZHAO Huan-yue;LI Xiao-fei;LIU Chun-sheng;WANG Li-guo;WANG Jia-ning(College of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Beijing Institute of Electronic System Engineering,Beijing 100854,China)

机构地区：[1]南京航空航天大学航天学院,江苏南京210001 [2]北京电子工程总体研究所,北京100854

出　　处：《激光与红外》2020年第2期161-167,共7页Laser & Infrared

基　　金：国家自然科学基金青年科学基金项目(No.61301211);江苏省研究生科研实践创新计划项目(No.KYCX18_0295)资助。

摘　　要：空间目标的红外成像仿真技术在军事国防、空间探测等领域都具有重要意义。本文提出了一种基于改进Delaunay三角剖分的空间目标红外辐射成像方法。此方法首先根据空间目标热平衡方程,利用节点网络法求解出目标的各节点温度,然后利用STK得出探测器、目标、地球与太阳的位置关系,随后由目标节点温度求得目标红外辐射强度,最后采用提出的改进Delaunay三角剖分的方法重建目标得到红外图像。本文以某卫星为例进行了成像仿真实验,实验验证了本文成像方法的有效性与高效性,对空间目标的红外探测与识别具有重要价值。IR imaging simulation technology of space target is of great significance in military and national defense,space exploration and other fields.In this paper,a method based on improved Delaunay triangulation for IR radiation imaging of space target is presented.Firstly,the temperature of each node is calculated by node network according to the heat balance equation.Secondly,the STK is used to get the positional relationship of the detector,the target,the earth and the sun.Then IR radiation intensity of the target is obtained from the node temperature.Finally,the improved Delaunay triangulation method is put forward to reconstruct the target to obtain IR images.In this paper,an imaging simulation experiment is carried out as an example.The experimental results verify the effectiveness and efficiency of the imaging method,which is of great value for IR detection and recognition of space target.

关 键 词：空间目标 红外辐射 三角剖分 成像 

分 类 号：O432.1[机械工程—光学工程] O434.3[理学—光学]