cross-correlation function


Also found in: Acronyms.

cross-correlation function

See autocorrelation function.

cross-correlation function

[′krȯs kär·ə′lā·shən ‚fəŋk·shən]
(communications)
A function, φ12(τ), where τ is a time-delay parameter, equal to the limit, as T approaches infinity, of the reciprocal of 2 T times the integral over t from -T to T of f1(t) f2(t - τ), where f1 and f2 are functions of time, such as the input and output of a communication system.
References in periodicals archive ?
However, the peak values of the cross-correlation function indicate that the EMG signals from the upper and lower portions were correlated during the curl up and leg raise exercises.
The data, definitions, and cross-correlation functions between terms of trade and trade balance are presented in the subsequent section, followed by concluding remarks and suggestions for future research in the final section.
For tool wear monitoring, the peaks that trend to zero of the Hilbert transform for the normalized cross-correlation function can be used.
The cross-correlation function from area B resembles the autocorrelation functions, with high first-order cross-correlation (I = 1.
i], for an observation period T, is computed based on estimated flipped cross-correlation function [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]
s], was developed for both the 2D bullet profile signature and 3D casing topography signature comparisons using auto- and cross-correlation functions.
The cross-correlation function between the annual incidences of VL and the 12-month moving average of the mean monthly Nino-3 index has its strongest negative correlation at a lag of 12 months and its strongest positive correlation at a lag of 36 months (Figure 2).
If the images are more alike, then cross-correlation function CC([theta]) will tend to approach 1.
In this investigation the largest success was reached by taking the maximum of a normalized cross-correlation function.
x] (*) is the cross-correlation function defined as
A hierarchical clustering approach that uses the cross-correlation function computed between different events was applied.