Time delay estimation in the time-frequency domain based on a line detection approach

The estimation of the time delay of arrival (TDOA) or the direction of arrival (DOA) has been an important research topic within the last few decades. In several applications, e.g., acoustic source localization or source separation, the estimation of the delay or the direction is a significant proce...

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Bibliographic Details
Published in2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) pp. 2716 - 2719
Main Authors Sandmair, Andreas, Lietz, Mario, Stefan, Johannes, Puente Leon, Fernando
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2011
Subjects
Delay
Delay effects
direction of arrival
Direction of arrival estimation
Estimation
generalized cross-correlation
Noise measurement
Radon transform
resolution problem
Sensors
time delay estimation
Transforms
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Summary:The estimation of the time delay of arrival (TDOA) or the direction of arrival (DOA) has been an important research topic within the last few decades. In several applications, e.g., acoustic source localization or source separation, the estimation of the delay or the direction is a significant processing block. Most of the available algorithms estimate the delay in the time domain. Therefore, the estimate is an integral multiple of the sampling period. Depending on the sampling rate and other parameters, the resolution is restricted and possibly not adequate for specific applications. To overcome the resolution problem, a new method based on the phase delay between two sensors and a line detection approach commonly used in image processing is proposed. Experimental results demonstrate the advantage of the introduced approach.
ISBN:9781457705380
1457705389
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2011.5947046