Estimation of arbitrary time delays of multichannel synthetic data
James Douglas Callison, Terry E. Riemer, Russell Trahan · The Journal of the Acoustical Society of America · 1987
A new method for computing arbitrary time delays between multichannel data is introduced based on the idea of using the ordinary cross-correlation technique. It is shown that, by windowing the data record, events can be isolated and identified between channels. This new technique, called the window-correlation technique (WCT), is capable of determining arbitrary delays, very accurately, down to a signal-to-noise ratio of 0 dB. Finally, results of the WCT are compared to those of the ordinary cross correlation for Gaussian signals corrupted by additive Gaussian white noise.