Show Reference: "The Generalized Correlation Method for Estimation of Time Delay"

The Generalized Correlation Method for Estimation of Time Delay Acoustics, Speech and Signal Processing, IEEE Transactions on In Acoustics, Speech, and Signal Processing [see also IEEE Transactions on Signal Processing], IEEE Transactions on, Vol. 24, No. 4. (29 August 1976), pp. 320-327, doi:10.1109/tassp.1976.1162830 by Charles H. Knapp, G. Clifford Carter
@article{knapp-and-carter-1976,
    abstract = {A maximum likelihood ({ML}) estimator is developed for determining time delay between signals received at two spatially separated sensors in the presence of uncorrelated noise. This {ML} estimator can be realized as a pair of receiver prefilters followed by a cross correlator. The time argument at which the correlator achieves a maximum is the delay estimate. The {ML} estimator is compared with several other proposed processors of similar form. Under certain conditions the {ML} estimator is shown to be identical to one proposed by Hannan and Thomson [10] and {MacDonald} and Schultheiss [21]. Qualitatively, the role of the prefilters is to accentuate the signal passed to the correlator at frequencies for which the signal-to-noise ({S/N}) ratio is highest and, simultaneously, to suppress the noise power. The same type of prefiltering is provided by the generalized Eckart filter, which maximizes the {S/N} ratio of the correlator output. For low {S/N} ratio, the {ML} estimator is shown to be equivalent to Eckart prefiltering.},
    author = {Knapp, Charles H. and Carter, G. Clifford},
    booktitle = {Acoustics, Speech, and Signal Processing [see also IEEE Transactions on Signal Processing], IEEE Transactions on},
    citeulike-article-id = {2214648},
    citeulike-linkout-0 = {http://dx.doi.org/10.1109/tassp.1976.1162830},
    citeulike-linkout-1 = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=1162830},
    day = {29},
    doi = {10.1109/tassp.1976.1162830},
    institution = {University of Connecticut, Storrs, CT},
    issn = {0096-3518},
    journal = {Acoustics, Speech and Signal Processing, IEEE Transactions on},
    keywords = {audio, cross-correlation, localization, ssl},
    month = aug,
    number = {4},
    pages = {320--327},
    posted-at = {2014-11-26 16:59:36},
    priority = {2},
    publisher = {IEEE},
    title = {The Generalized Correlation Method for Estimation of Time Delay},
    url = {http://dx.doi.org/10.1109/tassp.1976.1162830},
    volume = {24},
    year = {1976}
}

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By maximizing cross-correlation between two mutually time-shifted signals, one can estimate the shift between them.