This paper proposes a simple and high performance least square solver using recursive
update of modified Cholesky factors. While most of the methods require inversion of
correlation matrix, the proposed method is based on recursive updating of the modified
Cholesky factors of correlation matrix and linear prediction error to estimate time varying
channel coefficient, without finding the correlation matrix. Blind channel estimation of time
varying channel is considered for a SIMO system using only second order statistics (SoS) of …