DocumentCode :
535456
Title :
A composite fitting algorithm based on Sine function and a polynomial
Author :
Wang, Dongxing ; Zhao, ChunFeng ; Chen, Su ; Sun, Xingpeng
Author_Institution :
Sch. of Mechatron. & Automobile Eng., Yantai Univ., Yantai, China
Volume :
7
fYear :
2010
fDate :
16-18 Oct. 2010
Firstpage :
3116
Lastpage :
3119
Abstract :
Sine function is often used to fit the alternating current or voltage signal. However, affected by the physical characteristics of practical systems, there is always distinct difference between the waveform of a practical signal and that of a standard Sine function, which will bring a great fitting error. A composite fitting algorithm based on Sine function and a polynomial has been proposed. Sine function is used to fit the sinusoidal component of a practical signal. A polynomial is used to fit the other component. This will greatly reduce the fitting error. The proposed algorithm has been used to fit a practical alternating current signal. The results showed that the proposed algorithm can accurately fit the signal. The fitting error is less than that achieved by fitting with a Sine function merely. In addition, the algorithm is simple, rapid, and robust.
Keywords :
polynomials; signal processing; alternating current signal; composite fitting algorithm; fitting error; polynomial; sine function; voltage signal; Digital filters; Fitting; Interference; Low pass filters; Noise; Polynomials; Filtering; Fitting; Polynomial; Sine Function;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
Type :
conf
DOI :
10.1109/CISP.2010.5648122
Filename :
5648122
Link To Document :
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