Fast Blind Channel Estimation Method of ZP-OFDM System

This paper presents a blind channel estimation method for OFDM system based on fast improved LMS-Newton.The proposed method can get higher convergence rate and lower computational complexity.By subspace tracker,the proposed method can adaptively estimate the noise subspace of channel autocorrelation matrix,then estimate the channel of OFDM system.We present simulation results demonstrating the performance of the proposed method.