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Simulation of effects on sensor performance from particulates in the near field-of-view

机译：在近视场中模拟颗粒对传感器性能的影响

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Abstract: A computer model has been developed to determine the degradation of sensor performance due to contamination. These particulates may either by suspended in the near field-of-view or deposited on optical surfaces within the system. This system response simulation, PEARLSS (Particulate Effects Analysis on Response Levels of Spaceborne Sensors), is currently able to model many of the key dynamics of the particles to determine their distribution in the field-of- view and on the mirrors. Light from various sources is scattered off of the particulates. This radiation is mapped as a noise scene at the first mirror and the focal plane. The code is intended for performing parametric studies on design parameters such as sunshade geometry, system materials, temperatures, pre-launch cleanliness levels, and pointing directions. Sources of radiation currently modeled are the Sun and Earth, as well as user-defined sources. An overview of the simulation's approach to tracking contamination and scattered radiation is given.!12
机译：摘要：已开发出一种计算机模型来确定由于污染导致的传感器性能下降。这些微粒可以悬浮在近视场中，也可以沉积在系统内的光学表面上。目前，这种系统响应模拟PEARLSS（星载传感器响应水平的微粒效应分析）能够对粒子的许多关键动力学建模，以确定它们在视场和反射镜上的分布。来自各种来源的光从颗粒中散射出来。该辐射被映射为在第一反射镜和焦平面处的噪声场景。该代码旨在对遮阳板几何形状，系统材料，温度，发射前清洁度和指向指示等设计参数进行参数研究。当前建模的辐射源是太阳和地球，以及用户定义的辐射源。概述了模拟跟踪污染和散射辐射的方法。！12

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