Some adaptive filterbank spectral estimation methods based on FLOS

The performance of some adaptive filterbank spectral estimation (AFSE) methods in the symmetric alpha-stable noise environment is studied. Three new AFSE methods based on the fractional lower order statistics (FLOS) (AFSE-FLOS) are presented. These new methods are based on the fractional lower order covariance (FLOC) which are better than the methods based on second order statistics (SOS) and first order statistics (FOS) in the alpha-stable noise. The simulation shows the new methods based on FLOS outperforms their respective methods based on SOS and FOS in the alpha-shable noise while performs similar to their respective methods in the Gaussian noise.