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Performance evaluation of the SIMBIO-SYS Stereo Imaging Channel on board BepiColombo/ESA spacecraft

机译:Bepicolombo / ESA SpaceCraft船上Simbio-sys立体化成像通道的性能评估

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The Stereo Imaging Channel (STC) is one of the channels of the Spectrometer and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS) onboard the ESA BepiColombo mission to Mercury. STC is a double wide-angle camera designed to image each portion of the Mercury surface from two different lines of sights, whose main aim is to provide panchromatic stereo-image pairs required to generate the Digital Terrain Model (DTM) reconstruction. In addition, selected surface areas will be acquired in color. This work presents the expected STC on-ground and in-flight performance describing the preliminary evaluation of some key parameters: the optical performance, the on-ground resolution and detector response, the achievable Signal to Noise Ratio (SNR) for different integration times and observation strategies and the global coverage of panchromatic filters during the entire scientific phase. The estimation of the SNR has been made using the STC radiometric model with Hapke reflectance model for Mercury surface and the SPICE toolkit software. The SPICE toolkit software with kernel for BepiColombo mission has been used also for the estimation of the on-ground pixel dimension and the global coverage all over the mission. (C) 2018 Elsevier Ltd. All rights reserved.
机译:立体化成像通道(STC)是MPO Bepicolombo集成天文台系统(SIMBIO-SYS)的光谱仪和成像渠道之一(SIMBIO-SYS)船上的ESA Bepicolombo使命。 STC是一种双层广角相机,设计用于从两种不同的瞄准线上映像汞表面的每个部分,其主要目的是提供生成数字地形模型(DTM)重建所需的全色立体图像对。另外,选择的表面区域将以颜色获取。这项工作介绍了描述了一些关键参数初步评估的预期STC地面和飞行中的绩效:光学性能,地面分辨率和检测器响应,可实现的噪声比(SNR)用于不同的集成时间和在整个科学阶段在整个科学阶段的观察策略和全球覆盖。 SNR的估计已经使用STC辐射测定模型与汞表面的Hapke反射模型和Spice Toolkit软件进行了制作。 Spice Toolkit软件对于Bepicolombo Mission的核心,也用于估计地面像素维度和全球范围内的全球覆盖范围。 (c)2018年elestvier有限公司保留所有权利。

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