Title :
Investigation into the use of complex wavelets for analyzing of switching noise in SMPS
Author :
Wenjie Chen ; Xu Yang ; Zhaoan Wang
Author_Institution :
Sch. of Electr. Eng., Xi´an Jiaotong Univ.
Abstract :
This paper presents a scalogram and phase spectrum analyzing approach for the high-frequency switching noise detection. A complex Gaussian wavelet is used to extract the oscillation feature of the noise signal. The proposed scheme is more suitable in discriminating the type of switching noise than conventional wavelet transform approaches. Simulation results show the effectiveness and advantages of the method
Keywords :
Gaussian noise; electromagnetic interference; switched mode power supplies; wavelet transforms; Gaussian wavelet; complex wavelets; high-frequency switching noise detection; noise signal oscillation feature; Continuous wavelet transforms; Electromagnetic interference; Feature extraction; Frequency; Gaussian noise; Multiresolution analysis; Signal processing algorithms; Switched-mode power supply; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1711904
