Title :
The Dielectric Loss Measurement Method of Wiener Filtering and STFT Interpolation Harmonic Analysis Based on Wavelet Transform
Author :
Xianqing, Shen ; Chengyuan, Wang
Author_Institution :
Electr. power Eng. Sch. Shenyang, Shenyang Univ. of Technol., Shenyang
Abstract :
Dielectric loss angle measurement has the error easily when noise ratio is low for short-term Fourier (STFT) interpolation harmonic analysis, easy to cover up real value. It shares the dielectric loss measurement method based on Wiener filtering of wavelet transform region. Via the excellent time-frequency analysis tools of wavelet transform, we pick-up basal frequency signal. And we calculate dielectric loss measurement angel by STFT harmonic analysis interpolation analysis method. Emulation result indicates that the method will increase measuring veracity more.
Keywords :
Fourier transforms; Wiener filters; dielectric loss measurement; interpolation; wavelet transforms; Wiener filtering; dielectric loss measurement method; pick-up basal frequency signal; short-term Fourier interpolation harmonic analysi; wavelet transform; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Harmonic analysis; Interpolation; Loss measurement; Noise measurement; Wavelet analysis; Wavelet transforms; Wiener filter; Dielectric loss measurement; Short time Fourier transform; Wavelet transform; Wiener filtering;
Conference_Titel :
Education Technology and Computer Science, 2009. ETCS '09. First International Workshop on
Conference_Location :
Wuhan, Hubei
Print_ISBN :
978-1-4244-3581-4
DOI :
10.1109/ETCS.2009.119
