Title :
Detecting and extracting vibration disturb in IMU testing in field
Author :
Gang, Liu ; Jie, Yang ; Lixin, Wang ; Jiang, Gao ; Xiaomei, Wang
Author_Institution :
Xi´´an Hongqing Res. Inst. of Hi-Tech, Xi´´an, China
Abstract :
IMU was often interrupted by the vibration of ground when it was calibrated in the field, the vibration disturb would cause great influence to the calibrated precision of IMU. This paper first established the mathematic model of vibration signal, then analyzed the output signal of IMU by using wavelet modulus maximum method, finally deduced a arithmetic to restrain the noise disturb and distill the vibration. Simulation shows that this arithmetic had very good detection ability.
Keywords :
calibration; units (measurement); vibration control; wavelet transforms; IMU calibration; IMU testing; inertial measurement unit; noise disturb; vibration disturb detection; vibration disturb extraction; vibration signal model; wavelet modulus maximum method; Arithmetic; Bandwidth; Calibration; Continuous wavelet transforms; Frequency; Legged locomotion; Mathematical model; Mathematics; Testing; Wavelet transforms; IMU calibration; Vibration disturb; modulus maximum method; wavelet;
Conference_Titel :
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6347-3
DOI :
10.1109/ICCET.2010.5485585