Estimation of Spectral Exponent Parameter of 1/f Process in Additive White Background Noise
نویسندگان
چکیده
An extension to the wavelet-based method for the estimation of the spectral exponent, γ, in a 1/ f γ process and in the presence of additive white noise is proposed. The approach is based on eliminating the effect of white noise by a simple difference operation constructed on the wavelet spectrum. The γ parameter is estimated as the slope of a linear function. It is shown by simulations that the proposed method gives reliable results. Global positioning system (GPS) time-series noise is analyzed and the results provide experimental verification of the proposed method.
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ورودعنوان ژورنال:
- EURASIP J. Adv. Sig. Proc.
دوره 2007 شماره
صفحات -
تاریخ انتشار 2007