Title: Instantaneous Frequency Estimation Using Fractional Fourier Transform and Wigner Distribution
Abstract: This paper presents a novel Instantaneous Frequency (IF) estimation technique based on Signal separation and Wigner distribution (WD). WD is widely used for IF estimation of mono-component signals Proposed technique extends WD based IF estimation technique to multi-component signals. The Proposed technique decomposes a signal into its components using a hybrid image processing and fractional filtering based technique. WD with adaptive data driven window length is then used for instantaneous frequency estimation of mono-component separated signal components. Experiment results demonstrate that proposed scheme performs reasonably well for moderate to high Signal to Noise ratios (SNR).
Publication Year: 2010
Publication Date: 2010-02-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 5
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