Maximum Likelihood estimation of time delays in multipath acoustic channel

@article{Bhardwaj2008MaximumLE,
  title={Maximum Likelihood estimation of time delays in multipath acoustic channel},
  author={Tarkeshwar Prasad Bhardwaj and Ravinder Nath},
  journal={2008 2nd International Conference on Signal Processing and Communication Systems},
  year={2008},
  pages={1-4}
}
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. 

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