autocorrelator


Also found in: Wikipedia.

autocorrelator

[‚ȯd·ō′kär·ə‚lād·ər]
(electronics)
A correlator in which the input signal is delayed and multiplied by the undelayed signal, the product of which is then smoothed in a low-pass filter to give an approximate computation of the autocorrelation function; used to detect a nonperiodic signal or a weak periodic signal hidden in noise.
References in periodicals archive ?
A widely tunable fs laser system with a repetition rate of 1ghz, consisting of a ghz fs oscillator and a harmonically pumped ghz opo, with a separate autocorrelator as diagnostic tool.
Laser Light ScatteringDynamic light scattering was carried out by a commercial LLS spectrometer BI-200SM motor- driven goniometer equipped with BI-9000AT digital autocorrelator or the BI-9025AT photon counter and a cylindrical 22mW uniphase HeNe laser (wave length 637nm) and BI-ISTW software was used.
Work has recently been completed at the University of Tennessee, Chattanooga Department of Physics, Geology and Astronomy on the software configuration of an autocorrelator for use in dynamic light scattering experiments.
The autocorrelator, the standard pulse-diagnostic device since the 1960s, requires recombining two pulses in a carefully aligned second harmonic generation (SHG) crystal that yields only a rough measure of the length of the pulse in time.
Zipfel has several other applications for the PD2-DIO board including an inexpensive autocorrelator for a biophysical technique know as Fluorescence Correlation Spectroscopy (FCS) and to replace more expensive "multichannel sealers" he has previously used for several other types of biophysical and photophysical measurements.
The resulting scattered light is collected by a second fibre and then analyzed using the established technique of Dynamic Light Scattering and the company's own BL9000AT digital autocorrelator.
Infrasonic Energy Autocorrelator, Publicacion Observatorio San Calixto, La Paz, Bolivia, 10 pp.
An autocorrelator option enables the Tristar to be connected to a dynamic light scattering instrument to determine the diffusion coefficients "on the fly".
Creating Use of LabView in a Dynamic Light Scattering Autocorrelator.
BI-9000AT is state-of-the-art digital autocorrelator and photon counter.
To estimate the Doppler scaling factor, a periodic property of the received preamble via a bank of autocorrelators is used as shown in Fig.