| Summary: | The drawback of the parameter estimation method for ARMA SαS process based on fractional lower order moments（FLOM） was analyzed,and based on the conception of fractional lower order covariance（FLOC）,a new parameter estimation method of ARMA SαS process was proposed based on FLOC coefficient.Then,the α-spectrum estimation of ARMA SαS process was presented.By estimating the α-spectrum of ARMA SαS process and the sinusoidal signals that embedded in the α-stable noise,the α-spectrum estimation performances of ARMA SαS process based on FLOM and FLOC were compared in detail.Simulation results show that,for small values of alpha,the performance of the proposed α-spectrum estimation method for ARMA SαS process based on FLOC provides better performance than the method based on FLOM.
|
|---|
