autocorrelation

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autocorrelation

A measure of how closely a signal in a time series resembles a time-delayed image of itself—periodic signals are highly autocorrelated; random signals are not.
References in periodicals archive ?
For the model (1.6) used for simulations, the resulting autocorrelation function is displayed in Figure 2.3.
Caption: Figure 1: (a) Intensity autocorrelation functions as were obtained from DLS experiments for water drops in the template W/O microemulsion (O) and for agarose particles as were obtained in n-heptane (*).
By parity of reasoning, because the autocorrelation result of the square wave component is changed repeatedly from 1 to -1, there are multiple positive and negative peaks in the autocorrelation function of the BOC sequence.
The Gaussian profile has the same mean, variance and autocorrelation function (Table 3 and Figure 3) with the non-Gaussian profile.
number of bits describing a single character, length of frame, repetition cycle, synchronising sequences) can be easily described by the estimate of bit autocorrelation function of the binary sequence occurring at the demodulator output.
Caption: FIGURE 8: Autocorrelation function curve of the scenario with mass is 200 Kg and velocity is 1 m/s: blue curve is for undamaged condition and red curve is for the 50% damaged one.
Caption: Figure 12: The autocorrelation functions of x(t), y(t), and z(t) at a = n = 1, b = m = 0.5, c = 0.2, and d = 2.5 and for specific values of commensurate-order: (a) q = 0.95 and (b) q = 0.99.
So, strong autocorrelation coefficients are found due to the periodic repetition of I, B, and P frames, and the autocorrelation function has a very slow exponential decrease.
(10) by iterating the parameter [tau], where [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] are the normalized autocorrelation functions; and c) recalculate [??] after q iterations.
The new technique called the autocorrelation function timescale technique, or timescale technique for short, uses subtle variations in the brightness of distant stars recorded by satellites like Canada's MOST and NASA's Kepler missions.
As described in the study published in the journal (http://advances.sciencemag.org/content/2/1/e1500654) Science Advances , the new technique - autocorrelation function timescale technique, or timescale technique for short - uses slight variations in the brightness of stars to give a more accurate measurement of surface gravity for distant stars.