1 September 2009 MISTIGRI instrumental concept for high-resolution thermal infrared imaging
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High resolution images in the Thermal infrared provide a way to detect irrigated fields, to measure evapo-transpiration and detect plant water stress. Models and algorithms have largely improved to yield very good results. However the only in-orbit satellites providing high resolution images in the thermal infrared domain (Landsat, Aster) are long beyond their design lifetime. Furthermore, they do not provide frequent acquisitions (1 image every 16 days for Landsat and Aster, while 1 image per couple of days would be required to monitor plant water stress). There is indeed a need for high resolution and high repetitivity thermal infrared data for hydrological applications. CNES carried out a feasibility study of such a mission on a microsatellite. The mission is called MISTIGRI (MicroSatellite for Thermal InfraRed Ground Surface Imaging). The preliminary payload design was performed by Thales Alenia Space for CNES. An instrumental concept was proposed which fulfils the mission requirements. The study addressed both cooled and uncooled solutions, although a micro-bolometer detector was preferred after trade-off. This paper addresses the results of the MISTIGRI payload feasibility study; it presents the mission requirements, the proposed instrumental concept, describes the major subsystems and provides the preliminary performance budgets.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. Tintó Garcia-Moreno, F. Tintó Garcia-Moreno, G. Fargant, G. Fargant, F. Guerin, F. Guerin, C. Israbian, C. Israbian, J. C. Mathieu, J. C. Mathieu, J. Michaud, J. Michaud, A. Bardoux, A. Bardoux, O. Hagolle, O. Hagolle, J. P. Lagouarde, J. P. Lagouarde, } "MISTIGRI instrumental concept for high-resolution thermal infrared imaging", Proc. SPIE 7453, Infrared Spaceborne Remote Sensing and Instrumentation XVII, 745307 (1 September 2009); doi: 10.1117/12.825637; https://doi.org/10.1117/12.825637


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