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- W2034850898 abstract "High-performance instruments are very sensitive to vibrations and jitters. In this article, a new approach towards multi-degree-of-freedom (DOF) active vibration isolation and its application in spacecraft jitter suppression are presented. Model reference adaptive control (MRAC) with acceleration feedback is used to isolate random disturbances. However, a side effect of this algorithm is that displacements at low frequencies are amplified. Thus, the MRAC is augmented with proportional–integral–differential (PID) displacement feedback to suppress vibration displacements. The MRAC-PID composite control is applied to a 4-leg platform to isolate vibrations and suppress tip/tilt jitters. The scheme is also used to isolate 6-DOF vibrations and steer the payload of a flexible spacecraft. Satisfactory performance of vibration isolation and jitter attenuation has been observed." @default.
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- W2034850898 date "2012-04-27" @default.
- W2034850898 modified "2023-10-12" @default.
- W2034850898 title "Active vibration isolation based on model reference adaptive control" @default.
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- W2034850898 doi "https://doi.org/10.1080/00207721.2012.683834" @default.
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