Moments of the sampled autocovariances and autocorrelations for a Gaussian white-noise process. The Canad - Anderson - 1990 () Citation Context ...d second moments of the abovesexpression (2), as shown in the next theorem.sLet us first recall some concepts on elliptically contoured is...
Noise whose spectrum is “flat” as a function of frequency. The autocorrelation function of white noise is zero at all nonzero delays τ. View chapterExplore book Info icon Gossard, Arthur C.V. University of California, Santa Barbara, Santa Barbara, United States ...
These approaches are suitable for flat-fading channels in white noise with equal noise variances across antennas; knowledge of the noise variance is not required, unlike the energy detector. In this paper we investigate a method based on the sample autocorrelation of the received multiantenna signal...
A white noise process has an autocorrelation function of zero at all lags except a value of unity at lag zero, to indicate that the process is completely uncorrelated. A correlated process on the other hand, such as ARMA or ARIMA, has non-zero values at lags other than zero to indicate ...
and this is not consistent with the theoretical analysis.The origin of such influence is studied in this paper,and the analytic expressions of means and variances of those undesired items(which are produced by stationary noise),as well as the simplified forms for Gaussian white noise are derived...
Twitter Google Share on Facebook autocorrelation (redirected fromautocorrelations) Dictionary Medical Financial [¦ȯd·ō‚kär·ə′lā·shən] (electronics) Atechniqueusedtodetectcyclicactivityin acomplexsignal. (statistics) In atimeseries,therelationshipbetweenvaluesof avariabletakenatcertainti...
excitation information to excite a linear predictive (LPC) filter. The excitation, which is used as inputs to the filters, is modeled by a codebook of white Gaussian signals. The optimum excitation is found by searching through a codebook of candidate excitation vectors on a frame-by-frame ...
摘要: We compute autocorrelation functions from nonlinear Fokker-Planck equations that describe nonlinear families of Markov diffusion processes and illustrate this approach for the Plastino-Plastino Fokker-Planck equation related to the Tsallis entropy. DOI: 10.1140/epjb/e2004-00039-7 年份: 2003 收藏...
By default, SPM estimates temporal autocorrelation globally as an autoregressive AR(1) plus white noise process10. SPM has an alternative approach: FAST, but we know of only three studies, which have used it11,12,13. FAST uses a dictionary of covariance components based on exponential ...
Sustained, steady musical pitches show significant, structured autocorrelation at when calculated over windows of hundreds of milliseconds, where autocorrelation of aperiodic noise has become negligible at higher-lag points if a signal is whitened by LPC. Using such features, further compensated by ...