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Longer titles found: Spectral density estimation (view), Noise spectral density (view)

searching for Spectral density 47 found (707 total)

Geophysical survey (2,959 words) [view diff] exact match in snippet view article find links to article

analysed to draw meaningful conclusions out of that. Analysing the spectral density and the time-frequency localisation of any signal is important in applications

Wishart distribution (4,194 words) [view diff] exact match in snippet view article find links to article

Spectral density of Wishart-Laguerre ensemble with dimensions (8, 15). A reconstruction of Figure 1 of .

Quantum noise (3,746 words) [view diff] exact match in snippet view article find links to article

to classical noise theory and will not always return an asymmetric spectral density.[clarification needed] Shot noise as coined by J. Verdeyen is a form

Transcranial Doppler (3,305 words) [view diff] exact match in snippet view article find links to article

average transformation. Hamming window was applied as a smoother. The spectral density estimates, derived from single series Fourier analysis, were plotted

Matérn covariance function (1,347 words) [view diff] no match in snippet view article find links to article

In statistics, the Matérn covariance, also called the Matérn kernel, is a covariance function used in spatial statistics, geostatistics, machine learning

Oscillator linewidth (574 words) [view diff] exact match in snippet view article find links to article

noise in an oscillator stems from white noise sources, then the power spectral density (PSD) of the phase noise produced by an oscillator will be Sφ(f) =

Källén–Lehmann spectral representation (878 words) [view diff] exact match in snippet view article find links to article

^{2}+i\epsilon }},} where ρ ( μ 2 ) {\displaystyle \rho (\mu ^{2})} is the spectral density function that should be positive definite. In a gauge theory, this

Resonance fluorescence (5,624 words) [view diff] exact match in snippet view article find links to article

as the Fourier transform of the correlation function is the energy spectral density. Thus the two-time correlation function is a useful tool in the calculation

Barabási–Albert model (2,744 words) [view diff] exact match in snippet view article find links to article

of k {\displaystyle k} . The spectral density of BA model has a different shape from the semicircular spectral density of random graph. It has a triangle-like

TV-band device (516 words) [view diff] no match in snippet view article find links to article

TV band devices or TVBDs are unlicensed radio frequency devices operating in the vacant channels or white spaces between US television channels in the

Random matrix (7,207 words) [view diff] exact match in snippet view article find links to article

Spectral density of GOE/GUE/GSE, as N = 2 0 , 2 1 , . . . , 2 5 {\displaystyle N=2^{0},2^{1},...,2^{5}} . They are normalized so that the distributions

Green's function (many-body theory) (4,547 words) [view diff] exact match in snippet view article

propagators in real and imaginary time can both be related to the spectral density (or spectral weight), given by ρ ( k , ω ) = 1 Z ∑ α , α ′ 2 π δ (

Fluctuation–dissipation theorem (4,352 words) [view diff] exact match in snippet view article find links to article

)\right]\approx \omega RC^{2},} which then can be linked to the power spectral density function S V ( ω ) {\displaystyle S_{V}(\omega )} of the voltage via

Numerical analytic continuation (1,027 words) [view diff] exact match in snippet view article find links to article

problem of analytic continuation is that of numerically extracting the spectral density of a Green function given its values on the imaginary axis. It is a

Bit error rate (2,133 words) [view diff] exact match in snippet view article find links to article

(energy per bit to noise power spectral density ratio), or Es/N0 (energy per modulation symbol to noise spectral density). For example, in the case of

Pulse compression (5,513 words) [view diff] exact match in snippet view article find links to article

of the transmitted signal plus an additive noise of constant power spectral density on [ f 0 − Δ f / 2 , f 0 + Δ f / 2 ] {\displaystyle [f_{0}-\Delta f/2

Mass gap (1,114 words) [view diff] exact match in snippet view article find links to article

representation holds, at this stage we exclude gauge theories, the spectral density function can take a very simple form with a discrete spectrum starting

Space Communications and Navigation Program (563 words) [view diff] exact match in snippet view article find links to article

Rate 1/2 convolutional coding SQPN PRN coding - used to reduce power spectral density for low bit rate signals, and for time transfer. The Reed–Solomon method

Shock and vibration data logger (1,276 words) [view diff] exact match in snippet view article find links to article

impacts are available. Vibration data is often most useful in power spectral density format which can be used in to control random vibration testing in

Superluminescent diode (3,155 words) [view diff] exact match in snippet view article find links to article

relative intensity noise (RIN), that is the ratio between the power spectral density of the noise current, In, measured over a given bandwidth, and the

GW190814 (786 words) [view diff] exact match in snippet view article find links to article

Each detector's data are whitened by their respective noise amplitude spectral density and a Q-transform is calculated. The colorbar displays the normalized

Linear predictive coding (1,647 words) [view diff] exact match in snippet view article find links to article

"Theoretical consideration of the statistical optimum recognition of the spectral density of speech". J. Acoust. Soc. Jpn. B.S. Atal; M.R. Schroeder (1967).

SciPy (827 words) [view diff] exact match in snippet view article find links to article

SciPy Power spectral density of ECG using SciPy Original author(s) Travis Oliphant, Pearu Peterson, Eric Jones Developer(s) Community library project Initial

BGS conjecture (500 words) [view diff] exact match in snippet view article find links to article

{x}})\psi ={{\mathit {E}}_{\mathit {i}}}\psi } [definition needed] Spectral density: ρ ( x ) = ∑ i δ ( x − E i ) {\displaystyle \rho ({\mathit {x}})=\sum

Planck's law (18,082 words) [view diff] exact match in snippet view article find links to article

physics, Planck's law (also Planck radiation law: 1305 ) describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium

Track (optical disc) (1,059 words) [view diff] exact match in snippet view article

high amplitude and atypical frequency distribution (with excessive spectral density in the high frequencies, as compared to that commonly found in meaningful

Amplitude-shift keying (1,641 words) [view diff] exact match in snippet view article find links to article

|H_{r}(f)|^{2}df} where Φ N ( f ) {\displaystyle \Phi _{N}(f)} is the spectral density of the noise within the band and Hr (f) is the continuous Fourier transform

Noise temperature (antenna) (568 words) [view diff] exact match in snippet view article

Because k is a constant, we can effectively think of T as noise power spectral density (with unit W/Hz) normalized by k. Antenna noise is only one of the

Kolmogorov–Zurbenko filter (4,275 words) [view diff] exact match in snippet view article find links to article

scenario where the only information available about a process is its spectral density and smoothness quantified by Hölder condition. He derived the optimal

Extreme value theory (2,726 words) [view diff] exact match in snippet view article find links to article

ISBN 978-1-84996-874-4. ISSN 0172-7397. de Carvalho, M.; Davison, A.C. (2014). "Spectral density ratio models for multivariate extremes" (PDF). Journal of the American

Long-range dependence (1,135 words) [view diff] exact match in snippet view article find links to article

process fluctuates violently. Slowly decaying variances, LRD, and a spectral density obeying a power-law are different manifestations of the property of

Long-range dependence (1,135 words) [view diff] exact match in snippet view article find links to article

process fluctuates violently. Slowly decaying variances, LRD, and a spectral density obeying a power-law are different manifestations of the property of

Beamforming (3,019 words) [view diff] exact match in snippet view article find links to article

electromagnetic radiation or charged particles Periodogram – Estimate of the spectral density of a signal MUSIC – Algorithm used for frequency estimation and radio

Houseplant (4,238 words) [view diff] exact match in snippet view article find links to article

heart rate variability, blood saturation, blood volume pulse and power spectral density Respiratory rate Cortisol level, galvanic skin response (electrodermal

Rashid Sunyaev (1,283 words) [view diff] exact match in snippet view article find links to article

density perturbations since a distinct periodic dependence of the spectral density of perturbations on wavelength (mass) is peculiar to adiabatic perturbations

Crystal oscillator (9,538 words) [view diff] exact match in snippet view article find links to article

specified in oscillator data sheets), phase noise, spectral density of phase deviations, and spectral density of fractional frequency deviations. The effects

Sunlight (5,888 words) [view diff] exact match in snippet view article find links to article

plotted on a per-wavelength basis. When plotted that way, the power spectral density of sunlight peaks at a wavelength of about 501 nm, which is in the

Norbert Wiener (4,746 words) [view diff] exact match in snippet view article find links to article

theorem and the Khinchin – Kolmogorov theorem), states that the power spectral density of a wide-sense-stationary random process is the Fourier transform

Macrodiversity (1,194 words) [view diff] exact match in snippet view article find links to article

spatially uncorrelated AWGN noise vector, respectively. The power spectral density of AWGN noise is assumed to be N 0 {\displaystyle \scriptstyle N_{0}}

GEO600 (2,810 words) [view diff] exact match in snippet view article find links to article

sensitivity for gravitational wave strain is usually measured in amplitude spectral density (ASD). The peak sensitivity of GEO600 in this unit is 2×10−22 1/√Hz

Thermometer (6,270 words) [view diff] exact match in snippet view article find links to article

4 °C. Planck's law very accurately quantitatively describes the power spectral density of electromagnetic radiation, inside a rigid walled cavity in a body

Education and training of electrical and electronics engineers (1,212 words) [view diff] exact match in snippet view article find links to article

random variables, probability density function, autocorrelation, power spectral density. Control system components; block diagrammatic description, reduction

Pink (8,605 words) [view diff] exact match in snippet view article find links to article

a signal or process with a frequency spectrum such that the power spectral density is proportional to the reciprocal of the frequency. Grow lights often

Dynamic spectrum management (1,113 words) [view diff] exact match in snippet view article find links to article

masks of the tones on which bits can be loaded or the masks for power spectral density to allow for minimization of the interference caused due to excess

Fermi–Dirac statistics (4,817 words) [view diff] exact match in snippet view article find links to article

energy per fermion, provided it is in a neighbourhood of positive spectral density. In the case of a spectral gap, such as for electrons in a semiconductor

Ultrasound-modulated optical tomography (3,891 words) [view diff] exact match in snippet view article find links to article

is applied. With this theorem, we can further connect G1 with the spectral density of the modulated speckle. Their relationship in frequency space is

X Band Satellite Communication (1,360 words) [view diff] exact match in snippet view article find links to article

threats to the system. Features include Steerable beams High power spectral density Protection against nuclear events and space weather Military grade