Title :
Harmonic transform
Author :
Zhang, F. ; Bi, G. ; Chen, Y.Q.
Abstract :
A new method of spectrum analysis, harmonic transform, is proposed to provide an impulse-train spectrum for signals that are comprised of time-varying harmonics. The essential concept of the transform and some of its properties are discussed. Based on the new transform, a short time harmonic transform is developed for time-frequency analysis. Simulation examples dealing with voiced speech show that the harmonic transform can provide a better frequency representation for signals that contain time-varying harmonics.
Keywords :
Fourier transforms; computational complexity; harmonic analysis; signal processing; time-frequency analysis; Fourier transform; computational complexity; harmonic transform; spectrum analysis; time-frequency analysis; time-varying harmonics;
Journal_Title :
Vision, Image and Signal Processing, IEE Proceedings -
DOI :
10.1049/ip-vis:20040604
