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1 km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％.
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