Results 1 to 10 of about 9,248,795 (284)

SAR amplitude probability density function estimation based on a generalized Gaussian model [PDF]

open access: yesIEEE Transactions on Image Processing, 2006
In the context of remotely sensed data analysis, an important problem is the development of accurate models for the statistics of the pixel intensities. Focusing on synthetic aperture radar (SAR) data, this modeling process turns out to be a crucial task, for instance, for classification or for denoising purposes.
MOSER, GABRIELE   +2 more
exaly   +11 more sources

Dictionary-based stochastic expectation-maximization for SAR amplitude probability density function estimation [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2006
In remotely sensed data analysis, a crucial problem is represented by the need to develop accurate models for the statistics of the pixel intensities. This paper deals with the problem of probability density function (pdf) estimation in the context of synthetic aperture radar (SAR) amplitude data analysis.
MOSER, GABRIELE   +2 more
exaly   +6 more sources

Statistical properties for multipath-relayed communications over fading channels [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
In this paper, a multipath transmission with no regenerative relays over fading channels has been addressed. The probability density function of minimum amplitude at relay stations input has been determined.
Stefanović Mihajlo   +3 more
doaj   +1 more source

Statistics of the instantaneous interaural parameters for dichotic tones in diotic noise (N0Sψ)

open access: yesFrontiers in Neuroscience, 2022
Stimuli consisting of an interaurally phase-shifted tone in diotic noise—often referred to as N0Sψ—are commonly used to study binaural hearing.
Jörg Encke   +3 more
doaj   +1 more source

Stochastic P-bifurcation in a generalized Van der Pol oscillator with fractional delayed feedback excited by combined Gaussian white noise excitations

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
This paper investigates the stochastic P-bifurcation behavior of bistability in a generalized Van der Pol system with fractional time-delay feedback under additive and multiplicative Gaussian white noise excitations.
Yajie Li   +4 more
doaj   +1 more source

Distribution Characteristics of Ground Echo Amplitude and Recognition of Signal Grazing Angle

open access: yesSensors, 2021
With the continuous advancement of electronic technology, terahertz technology has gradually been applied on radar. Since short wavelength causes severe ground clutter, this paper studies the amplitude distribution statistical characteristics of the ...
Guangwei Zhang   +3 more
doaj   +1 more source

Array amplitude-phase and mutual coupling error joint correction method based on sparse Bayesian

open access: yesTongxin xuebao, 2022
In the actual array direction finding system, there are often a variety of errors such as amplitude and phase, mutual coupling, which lead to serious deterioration of array direction finding performance.In order to solve the problem of array direction ...
Ding WANG, Weigang GAO, Zhidong WU
doaj   +2 more sources

Wave Function Is not Amplitude of Probability Density [PDF]

open access: yesAmerican Journal of Modern Physics, 2017
Wave function (WF) is usually accepted to be the amplitude of probability density of a particle at a given point of phase space. This assertion is often referred to as Born postulate (BP) which is one of foundations of quantum mechanics. It is obvious that BP requires the normalization of WF to the number of indistinguishable particles in the object ...
openaire   +1 more source

Enhancement of direct waves based on the probability density function of seismic wave amplitudes

open access: yesGeophysical Journal International, 2022
SUMMARY The enhancement of direct waves in seismic records is desirable in various seismological situations, where the accurate picking of seismic phases is necessary for hypocentre location, spectral inversion, waveform inversion and seismic tomography.
Mitsutaka Oshima, Hiroshi Takenaka
openaire   +1 more source

Gamma-shadowed two-ray with diffuse power composite fading model

open access: yesAlexandria Engineering Journal, 2023
In this paper, a novel gamma-shadowed two-ray with diffuse power (GS-TWDP) composite fading model is proposed by assuming that the shadowing-caused mean power variations of the received signal, affected by TWDP multipath fading, are gamma distributed ...
Pamela Njemcevic, Almir Maric
doaj   +1 more source

Home - About - Disclaimer - Privacy