Harmonic transform
Harmonic transform
- Author(s): F. Zhang ; G. Bi ; Y.Q. Chen
- DOI: 10.1049/ip-vis:20040604
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- Author(s): F. Zhang 1 ; G. Bi 2 ; Y.Q. Chen 3
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View affiliations
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Affiliations:
1: Private address, Singapore
2: School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
3: Department of Computer Science and Engineering, Intelligent Information Processing Lab, Fudan University, Shanghai, People's Republic of China
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Affiliations:
1: Private address, Singapore
- Source:
Volume 151, Issue 4,
August 2004,
p.
257 – 263
DOI: 10.1049/ip-vis:20040604 , Print ISSN 1350-245X, Online ISSN 1359-7108
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.
Inspec keywords: harmonic analysis; time-frequency analysis; computational complexity; Fourier transforms; signal processing
Other keywords:
Subjects: Signal processing theory; Integral transforms in numerical analysis; Integral transforms in numerical analysis; Signal processing and detection; Computational complexity
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