Adaptive realization of a maximum likelihood time delay estimator

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Mathews, V. John
Other Author Hahn, Peter J.; Tran, Thao D.
Title Adaptive realization of a maximum likelihood time delay estimator
Date 1996
Description ABSTRACT This paper presents an adaptive maximum likelihood method for estimating the time difference of arrival of a source signal at two spatially separate sensors. It is well-known that the maximum likelihood technique achieves the Cramer-Rao lower bound for time delay estimation error for certain signal conditions. The a-β tracker is a heuristic mechanism that is heavily used in target tracking applications. In this work, we combine an adaptive realization of the maximum likelihood time delay estimator with the a-β tracker to obtain significant improvement in the performance of the tracker. Experimental results showing 2 to 8 dB improvement in the mean-square estimation error over the conventional a-β tracker for various signal-to-noise ratios are also included in the paper.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
First Page 3121
Last Page 3124
Language eng
Bibliographic Citation Hahn, P. J., Mathews, V. J., & Tran, T. D. (1996). Adaptive realization of a maximum likelihood time delay estimator. Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, 3121-4. May.
Rights Management (c) 1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 400,784 bytes
Identifier ir-main,15153
ARK ark:/87278/s6j399pm
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 702776
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