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 ?
The peak values of the cross-correlation function between the EMG signals of the upper and lower portions were high and indicated that the signals were statistically correlated and this correlation was not different between tasks (mean [+ or -] SD for the curl up: 0.
1994) found that the cross-correlation function between terms of trade and trade balance resembles a horizontal S-curve and labelled this finding the S-curve.
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 (CCF) showed that maximum temperature in the current month and rainfall and relative humidity at a lag of 2 months were positively and significantly associated with the monthly incidence of RRv, whereas relative humidity at a lag of 5 months was inversely associated with the RRv transmission.
From the cross-correlation function (CCF) we calculate a parameter called CC[F.
To evaluate the relationship between El Nino and VL and to quantify the delay of its possible impact, we calculated the cross-correlation function between the annual incidences of VL per 10,000 inhabitants from 1985 to 1999 and the 12-month moving average of the mean monthly Nino-3 index.
explain the construction, properties, and performance of 1-D synchronous prime codes, 2-D synchronous carrier-hopping prime codes, and multilength prime codes with low periodic cross-correlation functions.