Time Delay Analysis
Cross-correlations are useful for determining the time delay between two signals, e.g. for determining time delays for the propagation of acoustic signals across a microphone array. After calculating the cross-correlation between the two signals, the maximum (or minimum if the signals are negatively correlated) of the cross-correlation function indicates the point in time where the signals are best aligned, i.e. the time delay between the two signals is determined by the argument of the maximum, or arg max of the cross-correlation, as in
Read more about this topic: Cross-correlation
Famous quotes containing the words time, delay and/or analysis:
“There comes a time when the waltz
Is no longer a mode of desire, a mode
Of revealing desire and is empty of shadows.
Too many waltzes have ended.”
—Wallace Stevens (1879–1955)
“Face troubles from their birth, for ‘tis too late to cure
When long delay has given the evil strength.
Haste then; postpone not to the coming hour: tomorrow
He’ll be less ready who’s not ready now.”
—Ovid (Publius Ovidius Naso)
“A commodity appears at first sight an extremely obvious, trivial thing. But its analysis brings out that it is a very strange thing, abounding in metaphysical subtleties and theological niceties.”
—Karl Marx (1818–1883)