DocumentCode
2496767
Title
Amplitude modulated Fourier series
Author
Chen, Qing-hu ; Cai, Li-long
Author_Institution
Elelctron. Inf. Sch., Wuhan Univ., China
Volume
5
fYear
2003
fDate
2-5 Nov. 2003
Firstpage
2869
Abstract
This paper researches the amplitude modulated Fourier series (AMFS). For a non-stationary signal for which the spectrum is a function of the time, using constant coefficients of Fourier series means the losing local information of the spectrum. The amplitudes of AMFS, which vary as the function of the time, can improve the time-frequency localization for signal analysis. AMFS can also approximate the function in local time domain more accurately. Experiments show that AMFS is a useful tool for time-frequency analysis and function approximating.
Keywords
Fourier series; amplitude modulation; function approximation; spectral analysis; time-frequency analysis; AMFS; amplitude modulated Fourier series; function approximation; nonstationary signal; signal analysis; spectrum; time-frequency analysis; time-frequency localization; Amplitude modulation; Fourier series; Frequency domain analysis; Phase modulation; Signal analysis; Signal processing; Spectrogram; Time domain analysis; Time frequency analysis; Time series analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Machine Learning and Cybernetics, 2003 International Conference on
Print_ISBN
0-7803-8131-9
Type
conf
DOI
10.1109/ICMLC.2003.1260048
Filename
1260048
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