机载红外图像转换生成卫星仿真图像的大气修正方法研究  

Research on atmospheric correction methods of airborne infrared image conversion to satellite simulation image

作　　者：李金萍[1] LI Jin-ping(School of Information Engineering,East China University of Technology,Nanchang 330013,China)

机构地区：[1]东华理工大学信息工程学院,江西南昌330013

出　　处：《激光与红外》2023年第1期75-78,共4页Laser & Infrared

基　　金：江西省放射性地学大数据技术工程实验室开放基金项目(No.JELRGBDT202103)资助。

摘　　要：基于机载红外热像仪测量的8~12μm波段图像,根据大气的吸收和热辐射影响红外成像仿真的理论,结合MODTRAN软件,采用“机—地—星法”和“机—星法”两种方法进行飞机平台到卫星平台间的大气修正。通过仿真数据和仿真图像两个方面的比较得出:两种大气修正方法得到的仿真图像效果较好;“机—星法”运算量小便于实时操作、“机—地—星法”更接近真实情况可用性强。In this paper, based on the 8~12μm band images measured by airborne infrared thermal imager, the atmospheric correction between aircraft and satellite platform is carried out by two methods: The "air-ground-satellite method" and the "air-satellite method",according to the theory of the influence of atmospheric absorption and thermal radiation on infrared imaging simulation, combined with MODTRAN software. Through the comparison of simulation data and simulation images, it is concluded that the simulation images obtained by the two atmospheric correction methods are better;the "air-satellite method" is convenient for real-time operation with small computation amount, and the "air-ground-satellite method" is closer to the real situation with strong usability.

关 键 词：热红外辐射 大气修正 仿真 

分 类 号：TP721[自动化与计算机技术—检测技术与自动化装置]