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16 September 2011 Scanning pattern simulation for the meteorological payload of the polar communication and weather mission
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Abstract
The need for High Data Rate (HDR) communications and Near Real Time (NRT) meteorological information for the Canadian North led by the Canadian Space Agency (CSA) to propose the Polar Communication and Weather (PCW) mission to facilitate sovereignty operations in the Canadian North by providing reliable communications and increase the ability to model and predict environmental changes occurring in the northern regions. Rapid coverage of the full Earth disk from the highly elliptical PCW orbit requires that the scanning pattern of the Meteorological Payload be well understood. To that effort, we carried out a study to simulate and then analyze the scan mirror geometry and error sources. Multiple scan patterns and mirror geometry (gimbaled, two mirrors) have been investigated to guide the system design to minimize mirror displacements (duty cycle) and image distortions due to viewing geometry and Earth curvature. Results from simulations and comparative evaluations of both mirror geometry and scanning patterns (gimbaled, two mirrors) are provided with interpretations and conclusions.
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Riadh Ksantini, Shen-en Qian, and Martin Bergeron "Scanning pattern simulation for the meteorological payload of the polar communication and weather mission", Proc. SPIE 8157, Satellite Data Compression, Communications, and Processing VII, 81570R (16 September 2011); https://doi.org/10.1117/12.894176
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