Instantaneous Frequency Estimation of Multi-component Non-Stationary Signals using Multi-view Time-Frequency Distributions Based on the Adaptive Fractional Spectrogram
| Author | Khan, N.A. |
| Author | Boashash, B. |
| Available date | 2013-09-17T16:25:18Z |
| Publication Date | 2013-02 |
| Publication Name | IEEE Signal Processing Letters |
| Citation | N. Khan and B. Boashash, "Instantaneous Frequency Estimation of Multi-component Non-Stationary Signals using Multi-view Time-Frequency Distributions Based on the Adaptive Fractional Spectrogram", IEEE Signal Processing Letters, vol. 20, no. 2, pp. 157-160, Feb 2013. |
| ISSN | 1070-9908 |
| Description | This paper presents an approach to compute the instantaneous frequency (IF) of a multicomponent signal using a high resolution multiview time frequency distribution (TFD). (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated). |
| Abstract | This letter presents a novel algorithm to compute the instantaneous frequency (IF) of a multicomponent nonstationary signal using a combination of fractional spectrograms (FS). A high resolution time frequency distribution (TFD) is defined by combining FS computed using windows of varying lengths and chirp rates. The IF of individual signal components is then computed by applying a peak detection and component extraction procedure. The mean square error (MSE) of IF estimates computed with the AFS is lower than the MSE of IF estimates obtained from other TFDs for SNR varying from -5 dB to 16 dB. |
| Language | en |
| Publisher | IEEE |
| Subject | Adaptive fractional spectrogram instantaneous frequency estimation multicomponent signals multiview TFD time-frequency analysis quadratic TFDs time frequency distributions IF estimation time-frequency signal processing |
| Type | Article |
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