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Instantaneous Frequency Estimation of Multi-component Non-Stationary Signals using Multi-view Time-Frequency Distributions Based on the Adaptive Fractional Spectrogram

المؤلفKhan, N.A.
المؤلفBoashash, B.
تاريخ الإتاحة2013-09-17T16:25:18Z
تاريخ النشر2013-02
اسم المنشورIEEE Signal Processing Letters
الاقتباسN. 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.
الرقم المعياري الدولي للكتاب1070-9908
معرّف المصادر الموحدhttp://hdl.handle.net/10576/10896
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/LSP.2012.2236088
الوصفThis 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).
الملخصThis 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.
اللغةen
الناشرIEEE
الموضوعAdaptive fractional spectrogram
instantaneous frequency estimation
multicomponent signals
multiview TFD
time-frequency analysis
quadratic TFDs
time frequency distributions
IF estimation
time-frequency signal processing
العنوانInstantaneous Frequency Estimation of Multi-component Non-Stationary Signals using Multi-view Time-Frequency Distributions Based on the Adaptive Fractional Spectrogram
النوعArticle


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