Time delay estimation in a reverberant environment by low rate sampling of impulsive acoustic sources

Muhammad Omer, Ahmed A. Quadeer, Mohammad S. Sharawi, Tareq Y. Al-Naffouri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

This paper presents a new method of time delay estimation (TDE) using low sample rates of an impulsive acoustic source in a room environment. The proposed method finds the time delay from the room impulse response (RIR) which makes it robust against room reverberations. The RIR is considered a sparse phenomenon and a recently proposed sparse signal reconstruction technique called orthogonal clustering (OC) is utilized for its estimation from the low rate sampled received signal. The arrival time of the direct path signal at a pair of microphones is identified from the estimated RIR and their difference yields the desired time delay. Low sampling rates reduce the hardware and computational complexity and decrease the communication between the microphones and the centralized location. The performance of the proposed technique is demonstrated by numerical simulations and experimental results. © 2012 IEEE.
Original languageEnglish (US)
Title of host publication2012 11th International Conference on Information Science, Signal Processing and their Applications (ISSPA)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1050-1055
Number of pages6
ISBN (Print)9781467303828
DOIs
StatePublished - Jul 2012

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