適応フィルタを用いた機械式冷凍機の擾乱抑制

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  • Active Disturbance Reduction Control with an Adaptive Filter for a Mechanical Cryocooler

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In a high resolution observation satellite or an astronomy satellite, observation sensors need to be cooled down to reduce the thermal noise. Recently, a mechanical cryocooler is used to cool the sensors, though the mechanical cryocooler generates a small mechanical vibration with pistons of compressors. This small vibration degrades the resolution of a sensor or pointing accuracy. In this research, we propose an active disturbance reduction control with an adaptive filter for a mechanical cryocooler without any additional actuators.

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