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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 accurately simulate the imaging effect of satellites, and serve for the demonstration of satellite index parameters and the design of terrestrial system, based on the analysis of common satellite simulation methods, based on multi-core SMP cluster architecture, we choose to use ray tracing principle, The unique imaging model of the line-array camera simulates the satellite imaging process by using the time-space integral method, and obtains the high-resolution satellite-borne line camera simulation image. The experimental results show that this method can effectively simulate the imaging process of satellite remote sensing images, and the simulation image data can be applied to the design of the early indicators of remote sensing imaging satellite.