E. Sebastián, Joel Pérez, A. Bravo, R. Ferrándiz, Maite Fernández, J. Manfredi, G. Martinez, A. Peña, David González, José Moreno, J. de Lucas, Pedro Hernandez, I. Pérez-Grande, A. Chamorro, M. Ramos
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引用次数: 1
Abstract
The Thermal InfraRed Sensor (TIRS), an infrared (IR) radiometer developed at Centro de Astrobiología, is one the sensors that compose the Mars Environmental Dynamics Analyzer (MEDA) onboard NASA's Mars 2020 mission. It will measure the net thermal infrared radiation, reflected solar radiation at the surface, atmosphere temperature and surface skin brightness temperature using five different channels. The present paper provides a brief description on TIRS design and channels requirements. Then, a detailed presentation of sensor model equations and a sensitivity analysis to model uncertainties are included. Finally, accuracy and resolution calculus for each channel versus operational temperature is presented. The calculus is performed based on sensitivity equations and the estimated values for different uncertainties sources.
热红外传感器(TIRS)是由Centro de Astrobiología开发的红外辐射计，是构成NASA火星2020任务上的火星环境动力学分析仪(MEDA)的传感器之一。它将通过五个不同的通道测量净热红外辐射、地表反射太阳辐射、大气温度和地表皮肤亮度温度。本文简要介绍了TIRS的设计和通道要求。然后，详细介绍了传感器模型方程，并对模型不确定性进行了敏感性分析。最后，给出了各通道随工作温度变化的精度和分辨率演算。根据灵敏度方程和不同不确定性源的估计值进行了计算。
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