repetition frequency

repetition frequency

[‚rep·ə′tish·ən ‚frē·kwən·sē]
(communications)
(cell and molecular biology)
The number of copies of a given nucleotide sequence present in the haploid genome.
References in periodicals archive ?
For each waveform, the pulse width and repetition frequency are randomly generated.
It transmits high-frequency pulses with amplitude and frequency modulation, and variable pulse length and repetition frequency. It switches on the receiver after the high-energy transmit pulses are launched, and measures the elapsed time between the transmitted pulses and the echoes, thus determining the distance to the target.
This includes the RedEnergy G4 200W EP-Z pulsed fibre laser, which extends the power range of SPI's G4 platform with greater pulse energy, peak power and pulse repetition frequency. Combining these features with the G4's existing range of pulses provides a high flexibility across a number of applications, including high-speed welding, cleaning, cutting and drilling.
Two-dimensional echocardiography with TDI-color imaging views was optimized for pulse repetition frequency, color saturation, and sector size and depth and to allow highest possible frame rate.
The current perla a cpa system will provide pulses extended to hundreds of picoseconds compressible under 10 ps with a pulse energy of 100 mj and a repetition frequency of 100 hz.
The repetition frequency of the probing pulses should be regulated in the range from 0.01 to 1 kHz, depending on the OT scanning speed.
Although high pulse repetition frequency (PRF) pulse Doppler radar provides benefits, such as the ability to measure high velocity in an unambiguous manner, the highly range-ambiguous characteristic means that targets and interference typically alias or "fold" into the same radar range cell, even if they are disparate in physical range.
The pulse amplitude, duration, repetition frequency and number of pulses could be controlled, which allowed flexible parametric analysis of the biological effects of pulsed magnetic fields.
FHR monitoring is thus equal to tracking the local repetition frequency of heart sound in adjacent cardiac cycles.
To generate the greatest amount of temperature, it is necessary that the pulse duration and repetition frequency be in the same order as the relaxation time of the SPR expansion wave, which is of femtoseconds.
The time sequence is t = [[1: N].sup.T] x [DELTA]t, [DELTA]t = 1/ [f.sub.r], being the time interval, [f.sub.k] is the pulse repetition frequency. N = T / [DELTA]t is the number of pulses.
The antenna transmits a short chirped waveform with a given pulse repetition frequency (PRF).