Fourier spectrum

Fourier spectrum

[‚fu̇r·ē‚ā ‚spek·trəm]
(physics)
A plot of the magnitude and phase of the Fourier transform of a function.
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The Fourier spectrum decreases in amplitude with increasing spatial frequency.
Although researchers have made considerable progress in the field of time-frequency analysis, the amplitude spectrum obtained via the direct wavelet transform or the HHT has a completely different mathematical definition from and offers no quantitative comparability with the traditional Fourier spectrum.
It is known that the rigorous definition of an energetic spectrum is a Fourier spectrum of an autocorrelation function (Rytov et al.
Our proposed feature extraction method is based on Fourier transform of retinal images and a special partitioning of Fourier spectrum.
Then, if an alteration occurs at some time boundary, the whole Fourier spectrum will be affected, thus also needing the requirement of stationarity.
Visualization of a trajectory and dependence of a velocity component of a particle on time, and its Fourier spectrum are used in the investigation as tools for analysis.
With these new research was possible to know the influence of the changed parameters to the dampers characteristics and to move some of the frequencies in to the attenuation frequency bandwidth of the Fourier spectrum.
Indeed, the Fourier spectrum of BOBs indicates nonrandom frequencies within pre-NEB [Ca.
This way, the Spice Fourier spectrum taken at the frequency [f.
Figures 7-14 present the axle vertical acceleration in some typical conditions and the results of Fourier spectrum.
The method contents in the experimental research of the frequency Fourier spectrum of the arm type didactical robot in the different movement cases.

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