power spectrum

power spectrum

A plot of the power contained in a signal versus the frequency, or of the power in a spatial distribution versus the wavenumber (reciprocal of wavelength). It may be obtained by taking a Fourier transform of the signal or distribution and squaring the amplitude of each component in the result.

power spectrum

[′pau̇·ər ‚spek·trəm]
(physics)
References in periodicals archive ?
The respective power spectrum per lot results from the Section II of the tender specifications and the annexes to the terms of reference (Lot 1 and Lot 2).
2], fiber, solid-state and diode lasers, and the entire power spectrum, from single-digit watts up to multi-kilowatts, as well as a comprehensive spectrum of wavelengths.
The power spectrum of windowed signal is calculated as,
The materials are highly complementary in solar energy harvesting in view of the sun's broad visible and infrared power spectrum.
At the the top end of the Beaujolais power spectrum, the Counvent Des Thorins, Moulin-AVent 2011 (PS14.
DSI's Military Mobile Power Summit allows for civilian and military users across the energy and power spectrum to come together to learn, discuss, debate, and help advance these key areas in a relaxed forum where conversations are non-attribution.
0-litre, but the power spectrum of this engine seems much more suited to the car, thanks to some nifty supercharging.
The algorithm utilizes circular average power spectrum method to estimate the fractal dimension.
Figure 5a shows the resulting power spectrum of the data from 2012 between HJD 2455959 and 2455962, the interval corresponding to the brightening phase.
This is an unusual product aimed at the smaller, lightweight end of the power spectrum which we see as being of enormous interest to niche applications.
With surface electromyographic (EMG) signals, the traditional method for frequency analysis involves a Fourier Transform to generate a power spectrum, followed by calculation of the center frequency (i.
The machine offers excellent carbon arc gouging performance, and the generator is able to power Spectrum plasma cutters for additional cutting and gouging flexibility.