Least p norm criterion α spectrum estimation with carrier frequency detection
Hongshe Fan · Computer Engineering and Applications Journal · 2010
Least P Norm criterion(LPN) is proposed to improve performance of alpha spectrum estimation based on covariation coefficient matrix and Fractional Lower Order(FLO) covariance matrix;An improved Singularity Value Decomposition (SVD) method,named FLO-SVD,is used to estimate minimal order of ARSαSsignal model;LPN and IRLS algorithm are identified the parameters of model for estimating alpha spectrum of signal.Simulation results on QPSK signal in impulsive noise show that the proposed method has better performance than methods based on covariation coefficient matrix and FLO covariance matrix and exacter estimation than conventional SVD method in carrier frequency detections.