Abstract
This paper proposes a sparse linear prediction based algorithm to estimate time difference of arrival. This algorithm unifies the cross correlation method without prewhitening and that with prewhitening via an l2/l1 optimization process, which is solved by an augmented Lagrangian alternating direction method. It also forms a set of time delay estimators that make a tradeoff between prewhitening and non-prewhitening through adjusting a regularization parameter. The effectiveness of the proposed algorithm is demonstrated in noisy and reverberant environments.
Original language | English |
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Pages (from-to) | 1044-1047 |
Number of pages | 4 |
Journal | Journal of the Acoustical Society of America |
Volume | 137 |
Issue number | 2 |
DOIs | |
State | Published - 1 Feb 2015 |