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Research on the Effect of Cross-lorrelation-Improved Method Based High Accuracy Measuring Electrical Signal
Pages: 85-90
Year: Issue:  20
Journal: Electrical Measurement & Instrumentation

Keyword:  electrical signalcross -correlation -improved methodwhite noiseharmonic componentfrequency deviationamplitudeeffective value;
Abstract: To avoid the error problem caused by noise interference when measuring the electrical signal based on the sampling method,an improved cross-correlation denoising method has been proposed based on the traditional cross-correlation strategy. The proposed method will take full use of the sampling data and estimate the original signal ampli-tude,so as to recover the original data and obtain beeter denosing effect. In addition,such method can control the har-monic component and overcome the frequency deviation when the sampling duration is the integral multiple of sampling period ,with will help to reconstruct a sine signal with rated frequency. At last accuracy and outstanding of the method has been proved by simulation and contrasting effective value.
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