光学遥感成像系统全链路仿真框架研究  

Framework of entire image chains simulation for optical remote sensing images system

作　　者：马晓珊[1] 孟新[1] 杨震[1] 彭晓东[1] 谢文明[1] 

机构地区：[1]中国科学院空间科学与应用研究中心空间信息与仿真技术研究室,北京100190

出　　处：《量子电子学报》2012年第4期392-399,共8页Chinese Journal of Quantum Electronics

基　　金：863项目(2010AA7010418)

摘　　要：针对光学遥感成像系统的全链路仿真在我国刚刚起步。通过分析能量在大气、场景和遥感器之间传递时发生的各种相互作用,将整个仿真过程分为三维场景构建与组织、遥感器入瞳处辐亮度图像模拟、遥感器效果模拟三部分,分析了框架中各个模块的功能和模块之间的概念数据流向。最后分析了地形起伏和观测角度变化对成像的影响。计算显示:像元高度从0增至1km时,入瞳处辐亮度的最大相对差异可达170%;观测天顶角从180°变为124.4°时,辐亮度的相对差异最大可接近50%。The entire image chains simulation for the optical remote sensing images system is still at the starting stage in China.By analyzing the interactions between the atmosphere,the scene and remote sensor, imaging process is divided into three parts：the construction and organization of 3D scene,the sinnilation of the at-sensor radiance images and simulation of the sensor effects.The functions of each module and conceptual data flow among these modules are analyzed briefly.At last,the effects of terrain fluctuations and the view zenith angle on imaging are discussed.The results show that with the increase in pixels height from 0 to 1 km,the relative errors of the radiance at-sensor can reach 170%.And the maximum relative error of the radiance at-sensor is close to 50%with the change of the view zenith angles from 180°to 124.4°.

关 键 词：遥感 成像仿真 框架研究 全链路 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TP722.4[自动化与计算机技术—计算机科学与技术]