Blind Algorithm for Channel Order Estimation by Improved Channel Matrix Recursion Criterion
Bo Cui · Journal of Information Engineering University · 2015
A new blind algorithm for channel order estimation is proposed with respect to the singleinput multiple-output( SIMO) finite impulse response( FIR) channel. Firstly,the structural relationship between the overestimated channel and its coprime part is utilized,a novel channel matrix recursion( CMR) criterion is designed and a strict theoretical proof is provided for the CMR criterion. Furthermore,a new CMR cost function is constructed,and the new channel order estimation algorithm is also proposed. Theoretical analysis and simulation results show that the algorithm outperforms other existing techniques and is more robust to noise.