大气层内复杂目标的红外辐射计算方法研究  

Study of an Algorithm for Calculating Infrared Radiation of Complex Target in Atmosphere

作　　者：范春懿 谢放 田博 

机构地区：[1]空间物理重点试验室,北京100076

出　　处：《红外》2016年第4期27-32,共6页Infrared

摘　　要：提出了一种将视在光线法(Light Of Sight,LOS)与OpenGL软件接口相结合的方法。该方法利用OpenGL软件接口的深度测试与遮挡查询功能,确定了复杂外形目标在某探测方向上的有效发射面元及其辐射在介质中的传输路径。然后采用LOS法获得了大气层内目标在探测方向上的辐射特性。仿真结果表明,本文方法行之有效,且计算效率高。An algorithm combining Light of Sight （LOS） with the OpenGL software interface is proposed, The method uses the depth measuring and occlusion query functions of the OpenGL software interface to determine the effective emission surface in the detection direction and the transfer path of its radiation in mediums. Then, it uses LOS to obtain the radiation characteristics of the target in atmosphere in the detection direction. The simulation result shows that this algorithm is effective and has high computation efficiency.

关 键 词：红外特性 辐射特性 空间目标 

分 类 号：TN219[电子电信—物理电子学]