impulse train

impulse train

[′im‚pəls ‚trān]
(control systems)
An input consisting of an infinite series of unit impulses, equally separated in time.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The impulse response of a wireless channel can be represented as a discrete time series of time shifted and weighted delta functions (impulse train).
After the end of the first impulse train one or several isolated impulses (or impulse groups) were produced, resulting in a total impulse number of up to 11.
Here, after the end of the main impulse train, one or more (up to four) isolated impulses (or impulse groups) were produced.
An ideal comb filter is a unit amplitude periodically spaced impulse train in the frequency domain (Max 1981).
Synthetic seismic signals are generated by convolution of a source wavelet in the form of a Berlage function with an impulse train (Green function) simulating reflections or transitions of the source wavelet along its propagation path.
The following inputs and outputs are plotted: synthetic (or imported) wavelet, impulse train, seismogram (signal convolved with impulse train), seismogram plus noise-see bottom window in Fig.
Because the output of the frequency divider is an impulse train at a frequency of f/2, the dividers can be cascaded together without any filtering of fundamental suppression circuitry.
2008a, b) indicating that insect movement and feeding activity typically produced impulse trains in this range, but background noises usually contained shorter or longer impulse trains.
Consecutive larval impulses separated by < 150 ms were grouped together as impulse trains and classified according to the profile matched by a majority of the impulses.
The impulses and impulse trains detected in the recordings were analyzed with customized software, DAVIS (Digitize, Analyze, and Visualize Insect Sounds, Mankin et al.
2008b), it had been determined that particular classes of impulse trains, denoted as bursts, were good predictors of the presence of insect infestation at a recording site.
Consequently, we separated out a particular class of impulse trains, those with > 6 but < 200 impulses separated by intervals < 500 ms, as potential predictors of insect infestation, denoting them as bursts.