The Dynamic Measurement Method with Elimination of Noise Disturbance
WU Huai-gang1,2
1. School of Management and Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
2. School of Computer Science and Technology, Nanjing Normal University, Nanjing, Jiangsu 210098, China
Abstract：Due to measurement noise and frequency response of compensator, the dynamic compensator of the sensor has severely noise disturbance.The parameter estimate of the compensator and measurement precision is effected by the noise. A new dynamic measurement method for eliminating noise disturbance is described. To implement this method, the noise variance was estimated by the wavelet transform, and then a recursive least-squares method with bias-elimination was applied to estimate the unbiased parameters of the compensator. At the same time, polynomial prediction filter was used to eliminate the effect of high frequency noise on measurement precision. Experimental results show that the approach is effective.
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2011, Vol. 32 
