集群环境下星载线阵相机成像光线追踪模拟  

Ray-tracing simulation on imagery of satellite borne linear-array CCD camera based on cluster architecture

作　　者：谢金华[1] 刘美娟 邱振戈[3] 赵坤[4] 张春玲 

机构地区：[1]国家测绘地理信息局卫星测绘应用中心 [2]61206部队 [3]上海海洋大学 [4]航天恒星科技有限公司 [5]河南省测绘地理信息局

出　　处：《测绘科学》2015年第11期150-154,共5页Science of Surveying and Mapping

摘　　要：为了精确模拟卫星的成像效果,服务于卫星指标参数论证以及地面系统设计,该文在分析常用卫星模拟方法的基础上,基于多核SMP集群架构,选择利用光线追踪原理,同时依据星载TDI-CCD线阵相机的特有成像模型,通过使用时间-空间积分方法对卫星成像过程进行模拟,得到了高分辨率的星载线阵相机模拟影像。实验结果表明该方法能有效地模拟卫星遥感影像的成像过程,其模拟影像数据可以应用于遥感成像卫星前期指标论证设计中。In order to precisely simulate the imagery of satellites for serving the satellite parameter demonstration and ground system design,the paper obtained a high resolution simulated image of spaceborne camera based on the analysis on the simulation methods commonly used for satellites,and on the cluster architecture based multi-core SMP,selected the ray tracing principle,and used space-time integration method to simulate the satellite imaging process according to the specific imaging model of spaceborne TDI-CCD linear array cameras.Experimental results showed that the method could effectively simulate the process of satellite remote sensing imaging,and the simulated image data could be applied in the early index demonstration designs of remote sensing imaging satellites.

关 键 词：卫星成像仿真 光线追踪 TDI-CCD 多核SMP集群 

分 类 号：P236[天文地球—摄影测量与遥感]