An experimental comparison of the cross correlation and SCOT techniques for time delay estimation
- 24 March 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 5, 807-810
- https://doi.org/10.1109/icassp.1980.1170918
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. Author(s) Scarbrough, K. Kansas State University, Manhattan, Kansas Ahmed, N. ; Carter, G.CliffordKeywords
This publication has 5 references indexed in Scilit:
- A quantitative study of optimum and sub-optimum filters in the generalized correlatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A parameter estimation approach to time delay estimationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- The generalized correlation method for estimation of time delayIEEE Transactions on Acoustics, Speech, and Signal Processing, 1976
- The smoothed coherence transformProceedings of the IEEE, 1973
- Effective measurements using digital signal analysisIEEE Spectrum, 1971