Efficient EM initialisation method for time delay estimation
Min Yi, Ping Wei, Xiao Xian-Ci, Heng‐Ming Tai · Electronics Letters · 2003
A systematic and efficient initialisation method for the expectation-maximisation (EM) algorithm in time delay estimation is presented. This EM initialisation method is implemented in the frequency domain based on the alternating projection approach. Simulation results show that the proposed algorithm significantly improves the performance of the EM algorithm.