대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2004년도 하계학술대회 논문집 A
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- Pages.336-338
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- 2004
전력품질 왜곡 신호 압축에 관한 연구
A Study of Data Compression of Power Quality Disturbance Signal
- Chung Young Sik (University of Incheon, Dept. of Electrical Engineering) ;
- Park Chan Woong (University of Incheon, Dept. of Electrical Engineering)
- 발행 : 2004.07.14
초록
This paper introduces a compression algorithm for power quality disturbance signal via the discrete wavelet transform, DWT. Fundamental signal or stationary signal is estimated and then subtracted from a given signal to obtain a difference signal or nonstationary signal. DWT is applied to a difference signal to get coefficients that are thresholded to reduce a number of coefficients. Simulation results show the resonable compression ratio while keep low signal distortion.
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