crest factor


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crest factor

[′krest ‚fak·tər]
(physics)
The ratio of the peak value to the effective value of any periodic quantity such as a sinusoidal alternating current. Also known as amplitude factor; peak factor.
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References in periodicals archive ?
i] refers the initial phases of sine waves, but not cosine waveforms, which are often used when discussing minimization algorithms of crest factor (CF) as in [1].
Recent advances in crest factor minimization of multisine
The analyzer measures power, current, peak-to-peak voltage, and crest factor either continuously or as a single operation.
Ensuring equipment safety and effectiveness
It is ideally suited for the high crest factor, high bandwidth, complex modulated 2G, 3G, and 4G signals that are output from RF DACs and integrated transceivers.
IDT simplifies RF DAC, integrated transceiver-based designs
Although, the OFDM signal has many advantages, such as robustness against inter-symbol interference (ISI), experiences very high Peak to Average Power Ratio (PAPR) or Crest Factor.
Prototype of a peak to average power ratio reduction scheme in orthogonal frequency division multiplexing systems
His topics include linear systems and identification, modeling power amplified nonlinearities, memory effects, reducing the crest factor of digital communication signals, and frequency domain models.
Behavioral Modeling and Linearization of RF Power Amplifiers
The 61800 series is also able to provide precision measurements such as RMS voltage, RMS current, true power, power factor, current crest factor and many others.
Chroma simulator launched
The first is based on scalar measurements such as root mean square (RMS), crest factor and the kurtosis [5] which gives a reasonably global defect indication without the possibility of its location in the bearing.
Location and evaluation of bearings defects by vibration analysis and neural networks/Guoliu defektu vietos aptikimas ir ivertinimas virpesiu analizes ir neuroniniu tinklu metodu
Unlimited crest factor and 100% load step capability
Flywheel UPS systems are Environment Friendly & Efficient
Customers are able to rapidly evaluate Xilinx's crest factor reduction (CFR) and DPD algorithms in conjunction with ADI's high-performance transmitter solutions, saving considerable engineering time.
United States : Analog Devices Simplifies Wireless Infrastructure System Design with Mixed-Signal, Digital Pre-Distortion Development Platform Using Xilinx FPGAs
Customers can further speed time-to-market with a complete signal chain for software defined radio and test equipment: dual, 16-bit, 1-GSPS digital-to-analog converter (DAC) (DAC5682Z); wideband, fully differential amplifier (THS4509); programmable digital up and down converter (GC5016); digital pre-distortion solution with crest factor reduction (GC5325); direct quadrature modulator (TRF3703); frequency synthesizer (TRF3761); low-jitter clock generator and synchronizer (CDCE62005, CDCE72010); and high-performance digital signal processors (DSP) (TMS320C6472).
TEXAS INSTRUMENTS UNVEILS LOWEST POWER 250-MSPS, 14-BIT ADC
Vibration level--rms, exponential, peak, crest factor, max/min.
Sound and vibration suite provides interactive data acquisition and analysis: new software and hardware-based tools provide an integrated solution for monitoring and analyzing a wide range of vibrational applications
In addition to the versatile DAC5687, TI also offers additional low power analog parts and high performance DSPs, including the new GC1115 wideband crest factor reduction processor and TMS320TCI6482 DSP.
TI's latest 16-bit, 500-MSPS dual-channel digital-to-analog converter targets 3G wireless base stations

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