beat frequency

Also found in: Acronyms.

beat frequency

[′bēt ‚frē·kwən·sē]

(electronics)

The frequency of a signal equal to the difference in frequencies of two signals which produce the signal when they are combined in a nonlinear circuit.

beat frequency

The periodic variation in amplitude of an oscillation resulting from the superimposition (or mixing) of two oscillations of differing frequencies. It is equal to the difference between the two frequencies.

Mentioned in ?

References in periodicals archive ?

We then obtain the index [i.sub.peak] corresponding to the beat frequency of [d.sub.pq,k][n] through the peak detection of [absolute value of ([D.sub.p,qk][u])] for 0 [less than or equal to] u [less than or equal to] [N.sub.RFFT] - 1.

Design and Implementation of FMCW Surveillance Radar Based on Dual Chirps

The IQ-mixer and NI DAQ are used for the phase calculation, while the beat frequency is measured with the aid of the NI-SCOPE.

High-Accuracy AM-FM Radar with an Active Reflector

The nasal cilia are sensitive to high temperatures and the ciliary beat frequency is known to reduce at higher temperatures.

Nasal mucosa and mucociliary changes in extreme hot and dry weather in the deserts

Measurements of beat frequency (see next section) were made only during continuous activity.

Functional consequences of the asymmetric architecture of the ctenophore statocyst

Thus, secretolytic activity could also contribute to the cough inhibiting action of EPs[R] 7630 by dilution and accelerated removal of the chemical stimuli whereby the later effect may be enhanced by the previously reported increase of ciliary beat frequency in the presence of the extract (Neugebauer et al.

Evaluation of pharmacodynamic activities of EPs[R] 7630, a special extract from roots of Pelargonium sidoides, in animals models of cough, secretolytic activity and acute bronchitis

Flagellar beat frequency was calculated from the period required for one complete beat.

[Ca.sup.2+] and cAMP regulations of microtubule sliding in hyperactivated motility of bull spermatozoa

Such motion has been studied in terms of the number of cells that are rotating, their rotational frequency and the beat frequency of the sperm tail through frame by frame analysis of the recorded real-time videos.

Rotational dynamics of optically trapped human spermatozoa

The beat frequency of the interfered components is then detected by AVM counter.

Optimization of calibrating HeNe laser interferometers by sample-period simulation

At heart a lung would do arterial ink in deep retirement beating frequently with beat frequency breach.

From of autobiography

Mean quick phase amplitude and beat frequency increase approximately linearly with stimulus velocity.

Optokinetic nystagmus

A key advancement of the device is the use of a resistive-pulse technique to determine the tail beat frequency and the morphology of the sperm head.

Male infertility and microchips

Each frequency represents a unique summation range by using Equation (16), so by having the beat frequency, ([R.sub.T] + [R.sub.R]) is known, which represents an iso-range.