An improved time-delay estimation algorithm for acoustic detection and location
Hongmei Li · Journal of Computer Applications · 2006
The application of time delay estimation in passive acoustic detection and location was studied. An improved maximum likelihood estimator as the generalized correlation method for time-delay estimation, which adopted the methods of windowing and least mean square (LMS) filter, was proposed. The simulation results show that the proposed algorithm can reduce the complexity of computation obviously, eliminate the influence of reecho efficiently, and has better estimation accuracy and robustness.