DocumentCode
2250403
Title
Adaptive Harmonic Fractional Fourier Transform
Author
Zhang, Feng ; Chen, Yan Qiu ; Bi, Guoan
Author_Institution
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Volume
5
fYear
2000
fDate
2000
Firstpage
45
Abstract
A novel adaptive harmonic fractional Fourier transform is proposed for analysis of voiced speech signals. It provides a higher concentration than STFT and avoids the cross interference components produced by the Wigner-Ville distribution and other bilinear representation. The proposed method rotates the base tone and harmonics in time-frequency domain. After the rotation, base tone and harmonics become parallel to the time axis in time-frequency domain so that a high concentration can be achieved
Keywords
adaptive signal processing; fast Fourier transforms; speech processing; time-frequency analysis; adaptive harmonic fractional Fourier transform; base tone; time axis; time-frequency domain; voiced speech signal analysis; Acceleration; Bismuth; Fourier transforms; Harmonic analysis; Interference; Power harmonic filters; Signal analysis; Signal resolution; Speech analysis; Time frequency analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location
Geneva
Print_ISBN
0-7803-5482-6
Type
conf
DOI
10.1109/ISCAS.2000.857359
Filename
857359
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