Variability Method for Cyclo-Period Estimation of Cyclostationary Signals
| Authors: | Wang Jiandong, University of Alberta, Canada
Chen Tongwen, University of Alberta, Canada
Huang Biao, University of Alberta, Canada |
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| Topic: | 1.1 Modelling, Identification & Signal Processing |
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| Session: | Time Series Modelling |
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| Keywords: | Cyclostationary signals, cyclo-period estimation, blocking, variability |
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Abstract
This paper presents a new method, named as the variability method, to estimate the cyclo-period of a discrete-time cyclostationary signal. The method is essentially based on the time-varying correlation and/or mean, whose estimators are associated with some statistics of blocked signals; a plot of variability of these statistics as a function of the blocking operator index visually reveals a periodic pattern, from which the cyclo-period is obtained. The variability method is validated via simulation and real-life examples.
