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1 autocorrelation functions
• автокорелационна функцияEnglish-Bulgarian polytechnical dictionary > autocorrelation functions
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Autocorrelation — is a mathematical tool for finding repeating patterns, such as the presence of a periodic signal which has been buried under noise, or identifying the missing fundamental frequency in a signal implied by its harmonic frequencies. It is used… … Wikipedia
Optical autocorrelation — Classification of the different kinds of optical autocorrelation. In optics, various autocorrelation functions can be experimentally realized. The field autocorrelation may be used to calculate the spectrum of a source of light, while the… … Wikipedia
Partial autocorrelation function — In time series analysis, the partial autocorrelation function (PACF) or PARtial autoCORrelation (PARCOR) plays an important role in data analyses aimed at identifying the extent of the lag in an autoregressive model. The use of this function was… … Wikipedia
Complementary sequences — For complementary sequences in biology, see complementarity (molecular biology). In applied mathematics, complementary sequences (CS) are pairs of sequences with the useful property that their out of phase aperiodic autocorrelation coefficients… … Wikipedia
Predictive analytics — encompasses a variety of techniques from statistics and data mining that analyze current and historical data to make predictions about future events. Such predictions rarely take the form of absolute statements, and are more likely to be… … Wikipedia
Bent function — The 2 ary bent functions with Hamming weight 1 Their nonlinearity is … Wikipedia
Correlation function (astronomy) — For other uses, see Correlation function (disambiguation). Physical cosmology … Wikipedia
Triple correlation — The triple correlation of an ordinary function on the real line is the integral of theproduct of that function with two independently shifted copies of itself: int { infty}^{infty} f^{*}(x) f(x+s 1) f(x+s 2) dxThe Fourier transform of triple… … Wikipedia
Box-Jenkins — In econometrics, the Box Jenkins methodology, named after the statisticians George Box and Gwilym Jenkins, applies autoregressive moving average ARMA or ARIMA models to find the best fit of a time series to past values of this time series, in… … Wikipedia
Time Reversal Signal Processing — is a technique for focusing waves. A Time Reversal Mirror (TRM) is a device that can focus waves using the time reversal method. TRMs are also known as time reversal mirror arrays, as they are usually arrays of transducers, but they do not have… … Wikipedia
Wigner quasi-probability distribution — See also Wigner distribution, a disambiguation page. The Wigner quasi probability distribution (also called the Wigner function or the Wigner Ville distribution) is a special type of quasi probability distribution. It was introduced by Eugene… … Wikipedia