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:
“It was you that broke the new wood,
Now is a time for carving.
We have one sap and one root—
Let there be commerce between us.”
—Ezra Pound (1885–1972)
“Once we began to see our images
Reflected in the mud and even dust,
‘Twas disillusion upon disillusion.
We were lost piecemeal to the animals,
Like people thrown out to delay the wolves.
Nothing but fallibility was left us....”
—Robert Frost (1874–1963)
“The spider-mind acquires a faculty of memory, and, with it, a singular skill of analysis and synthesis, taking apart and putting together in different relations the meshes of its trap. Man had in the beginning no power of analysis or synthesis approaching that of the spider, or even of the honey-bee; but he had acute sensibility to the higher forces.”
—Henry Brooks Adams (1838–1918)