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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:WANG Yu-liang.Research and test of the adaptive quadrature demodulation technologyfor silicon micro-machined gyroscope[J].Journal of Harbin Institute Of Technology(New Series),2012,19(5):118-122.DOI:10.11916/j.issn.1005-9113.2012.05.019.
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Research and test of the adaptive quadrature demodulation technologyfor silicon micro-machined gyroscope
Author NameAffiliation
WANG Yu-liang Institute of Acoustics, Chinese Academy of Sciences,Beijing 100190, China 
Abstract:
A program of adaptive quadrature demodulation is proposed to supply the gaps in the traditional analog detection technology of a silicon micro-machined gyroscope (SMG). This program is suitable for digital phase locked loop (DPLL) drive technology that proposed in other papers. In addition the program adopts an adaptive filtering algorithm, which selects the in-phase and quadrature components that are outputs of the DPLL of the SMG’s drive mode as reference signals to update the amplitude of the in-phase and quadrature components of the input signal by iteratively. An objective of the program is to minimize the mean square error of the accurate amplitudes and the estimated amplitudes of SMG’s detection mode. The simulation and test results prove the feasibility of the program that lays the foundation for the further improvement of the SMG’s system performance and the implementation of the SMG system’s self-calibration and self-demarcation in future.
Key words:  Silicon Micro-machined Gyroscope (SMG)  adaptive filtering technology  quadrature demodulation  Field Programmable Gate Array(FPGA)
DOI：10.11916/j.issn.1005-9113.2012.05.019
Clc Number:V241.5
Fund:

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