Investigation on filter methods of MEMS gyros drift data
Wenbo Zhang · Journal of Chinese Inertial Technology · 2006
The random noise of micromachined quartz rate-sensor can affect the system precision.Normal digital filter method such as low-pass filter can causes evident delay and decreases the phase margin.And it can’t work on the noises under the cut-off frequency.Based on the building of the time sequence model of MEMS gyro drift data,the MEMS gyro drift data is processed using Kalman filter.The simulation results show that the algorithm is effective.