An experimental comparison of the cross correlation and SCOT techniques for time delay estimation
Abstract
In the interest of localizing underwater acoustic sources, several digital signal processing techniques have been proposed for the important intermediate step of time delay estimation. One such method is the SCOT (Smoothed Coherence Transform) method which is designed to counteract the undesirable effects of strong sinusoids. The purpose of this paper is to compare the performance of the SCOT with the standard cross correlation method when sinusoids are not present. Under these conditions it is shown that the cross correlation method outperforms the SCOT. The results so obtained are compared with some of those published recently.
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Cites
The generalized correlation method for estimation of time delay
Knapp, C., & Carter, G. (1976) · IEEE Transactions on Acoustics, Speech, and Signal Processing · doi:10.1109/tassp.1976.1162830 · Cited by 4,433 · see citing works
Self-citationEffective measurements using digital signal analysis
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Carter, G. C., Nuttall, A. H., & Cable, P. G. (1973) · Proceedings of the IEEE · doi:10.1109/proc.1973.9300 · Cited by 199 · see citing works
Self-citationOptimal Rectifier Systems for the Detection of Steady Signals
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Hassab, J. C., & Boucher, R. (2005) · IEEE International Conference on Acoustics Speech and Signal Processing · doi:10.1109/icassp.1979.1170770 · Cited by 22 · see citing works
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Chan, Y. T., Riley, J., & Plant, J. B. (2005) · IEEE International Conference on Acoustics Speech and Signal Processing · doi:10.1109/icassp.1979.1170751 · Cited by 3 · see citing works
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Research works printed but not linked: 3
- carter, 1972, The smoothed coherence transform (SCOT)
- carter, 0, Sonar signal processing for source state estimation
- scarbrough, 1979, An experimental comparison of techniques for time delay estimation
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- Authors
- Scarbrough, K., Ahmed, N., & Carter, G.
- Affiliations
- Kansas State University (US)
- ORCID
- Ahmed, N.
- Venue
- ICASSP '80. IEEE International Conference on Acoustics, Speech, and Signal Processing
- Published
- 2005-03-24
- Volume
- 5
- Pages
- 807-810
- ISSN
- 1520-6149 (ISSN-L)
- OpenAlex
- W1922495267
- Semantic Scholar
- bb304f08d2a39a005ee2fd83070f0aaa1b9f4ad4
- Cited by
- 6
- References
- 6
- FWCI
- 7.34
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- IEEE International Conference on Acoustics Speech and Signal Processing (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Underwater Acoustics Research
- Physical Sciences › Engineering › Ocean Engineering › Underwater Vehicles and Communication Systems
- Physical Sciences › Computer Science › Signal Processing › Direction-of-Arrival Estimation Techniques
- Keywords
- time delay estimation, cross correlation function, Scots, underwater acoustic source localization, performance comparison
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