Spectral analysis

Spectral analysis

Spectral analysis may refer to:

* Spectrum analysis, in physics, a method of analyzing the chemical properties of matter from bands in their optical spectrum
* Spectral theory, in mathematics, a theory that extends eigenvalues and eigenvectors to linear operators on Hilbert space, and more generally to the elements of a Banach algebra
* Spectral analysis, in statistics, a procedure that decomposes a time series into a spectrum of cycles of different lengths. Spectral analysis is also known as frequency domain analysis.
* In nuclear and elementary particle physics, gamma ray spectroscopy, and high-energy astronomy, the analysis of the output of a pulse height analyzer for characteristic features such as lines, edges, and various physical processes producing continuum shapes.


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  • spectral analysis — spektrinė analizė statusas T sritis fizika atitikmenys: angl. spectral analysis vok. Spektralanalyse, f rus. спектральный анализ, m pranc. analyse spectrale, f …   Fizikos terminų žodynas

  • Least-squares spectral analysis — (LSSA) is a method of estimating a frequency spectrum, based on a least squares fit of sinusoids to data samples, similar to Fourier analysis. [cite book | title = Variable Stars As Essential Astrophysical Tools | author = Cafer Ibanoglu |… …   Wikipedia

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  • Hilbert spectral analysis — is a signal analysis method applying the Hilbert transform to compute the instantaneous frequency of signals according to :omega=frac{d heta(t)}{dt}.,After performing the Hilbert transform on each signal, we can express the data in the following… …   Wikipedia

  • absorption spectral analysis — sugertinė spektrinė analizė statusas T sritis fizika atitikmenys: angl. absorption spectral analysis vok. Absorptionspektralanalyse, f rus. абсорбционный спектральный анализ, m pranc. analyse spectrale par absorption, f …   Fizikos terminų žodynas

  • emission spectral analysis — emisinė spektrinė analizė statusas T sritis fizika atitikmenys: angl. emission spectral analysis vok. Emissionsspektralanalyse, f rus. эмиссионный спектральный анализ, m pranc. analyse spectrale d’émission, f …   Fizikos terminų žodynas

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