Title :
Multipath delay estimation for acoustic echo channel
Author :
Sharma, R.N. ; Chaturvedi, A.K. ; Sharma, G.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur
Abstract :
A new algorithm for multipath delay estimation based upon autocorrelation estimator (AE) has been proposed. The existing generalized autocorrelation estimator (GAE) has been modified by passing it through a sliding window of suitable shape and size resulting in improvement in performance. The performance improvement obtained because of the window has been determined for the case when the input is a filtered version of a white Gaussian signal. Accuracy percentage (AP) has been plotted against SNR. Simulation results show that the proposed scheme performs better delay estimation even at relatively low SNR
Keywords :
Gaussian processes; acoustic correlation; delay estimation; echo; SNR; acoustic echo channel; autocorrelation estimator; generalized autocorrelation estimator; multipath delay estimation; white Gaussian signal; Delay estimation;
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Conference_Location :
Chiang Mai
Print_ISBN :
0-7803-8560-8
DOI :
10.1109/TENCON.2004.1414373
