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The paper proposes a new measurement method of angular acceleration for photoelectric servo turntable. Piezoelectric angular acceleration sensor is used to measure angular acceleration directly, Adaptive FIR filter based on LMS algorithm is established on DSP, by which angular acceleration signal can be filtered and corrected errors adaptively, then angular acceleration signals can be measured adaptively...
A new servo control methods for O-E theodolite is presented in this paper. The methods integrates optimally feed forward and feedback control, and adopts acceleration delay compensation based on velocity delay compensation, then achieves servo control of O-E theodolite effectively. Furthermore, Angular acceleration sensor is applied as information resources, and adaptive filter is formed to provide...
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