Indonesian Journal of Electrical Engineering and Computer Science
Vol 12, No 11: November 2014

Design of Adaptive Filter for Laser Gyro

Xiao Jun Yan (North University of China)
Jin Ming Li (North University of China)
Ze Ming Li (North University of China)
Yan Jiao Yang (North University of China)
Cheng Rui Zhai (North University of China)



Article Info

Publish Date
01 Nov 2014

Abstract

According to the filtering of laser gyro output signal of low precision, slow speed of dynamic response, the research and implementation of a new method of laser gyro filtering process, the scheme using LMS adaptive filtering algorithm, the dither feedback signal as the iterative filter data input, the dither signal, random noise, white noise as the reference signal filter, digital filter and the external control using FPGA, give the filter algorithm and hardware block diagram. Experimental results show that the filtering module with filter with high precision and wide dynamic response range, can meet the requirements of speed and precision of laser gyro demodulation aerospace fields.

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