Authors:
Eduardo Sebastián
;
Carlos Armiens
and
Javier Gomez-Elvira
Affiliation:
Lab. de Robótica y Exploración Planetaria, Centro de Astrobiología, Spain
Keyword(s):
Environmental monitoring, infrared temperature detection and sensor error sources.
Related
Ontology
Subjects/Areas/Topics:
Business Analytics
;
Change Detection
;
Data Engineering
;
Environmental Monitoring and Control
;
Informatics in Control, Automation and Robotics
;
Signal Processing, Sensors, Systems Modeling and Control
;
Signal Reconstruction
Abstract:
This paper analyses the external sources of error of the REMS GTS, a contactless instrument to measure ground temperature that is part of the payload of the NASA MSL mission to Mars. Some environment properties such us atmosphere opacity, solar radiance, ground emissivity and rover IR emissions are studied, determining GTS characteristics. The article also proposes a simplified geometrical and thermal model of the rover and environment in order to evaluate and quantify their influence in ground temperature measurements. Finally, the article summarizes simulation results and provides solutions in order to improve sensor accuracy.