The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Bookmark and Share
Application of Improved Wavelet Threshold De-noising to the Power Quality Detection
Pages: 220-224
Year: Issue:  4
Journal: Journal of Liaoning Institute of Technology(Natural Science Edition)

Keyword:  de-noising3σ rulesoft-hard threshold function compromise methodμ-threshold method;
Abstract: According to the shortcomings that wavelet soft threshold de-noising has fixed deviation, hard threshold de-noising is discontinuous and characteristics of power system signal, this paper proposes an improved signal de-noising method. This method uses the “3σrules” to select the threshold, combines soft-hard threshold function compromise de-noising method with μ-threshold method to de-noise the signal. The improved de-noising method can eliminate the noise more efficiently, retains the useful signal better and improves the effect of signal de-noising. The results of MATLAB simulation verify that the method can present the characteristics of the signal better, make the signal smooth and achieves better results.
Related Articles
No related articles found