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Maximum Likelihood estimation of time delays in multipath acoustic channel

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2 Author(s)
Tarkeshwar Prasad Bhardwaj ; Department of Electrical Engineering, National Institute of Technology, Hamirpur-177005, Himachal Pradesh, India ; Ravinder Nath

A maximum likelihood (ML) estimator is developed for determining time delays in multipath acoustic channel in the presence of uncorrelated noise. The performance of the ML estimator is compared with a generalized autocorrelation estimator (GAE) and Cramer-Rao lower bound (CRLB) for resolvable multipath, via computer simulation. Simulation results show that the performance of the ML estimator is superior to the GAE and is close to CRLB.

Published in:

Signal Processing and Communication Systems, 2008. ICSPCS 2008. 2nd International Conference on

Date of Conference:

15-17 Dec. 2008