This paper addresses the problem of time-delay estimation. Two new algorithms for time-delay estimation are developed and analyzed. The suggested methods combine an exhaustive search with a low complexity. Consequently, the problems with focal minima of gradient search algorithms are avoided. The receiver operating characteristics (ROC) are computed, and together with simulation results these verify the performance of the estimation schemes.
['Catharina Carlemalm', 'Susanne Halvarsson', 'Torbjörn Wigren', 'Bo Wahlberg']
Algorithms for time delay estimation using a low complexity exhaustive search