Results 91 to 100 of about 112,717 (277)

Undamped harmonic oscillator driven by additive Gaussian white noise: a statistical analysis

open access: yesCommunications on Stochastic Analysis, 2011
While consistency of the maximum likelihood estimator of the drift matrix in a multi-dimensional continuous time Ornstein-Uhlenbeck pro- cess holds under rather general conditions, little is known about the rate of convergence and the limiting distribution of the estimator when the un- derlying process is not ergodic.
N Lin, S V Lototsky
openaire   +2 more sources

Surface Passivation of HgTe Nanocrystals Enabling EG/2 Open‐Circuit Voltage and Their Coupling to Dielectric Cavity for Narrow Detection

open access: yesAdvanced Materials, EarlyView.
This article explores how the integration of a thin shell, combined with optimized surface chemistry, enables the design of photodiodes based on short‐wave infrared HgTe nanocrystals. These photodiodes achieve an open‐circuit voltage greater than half the optical bandgap, which drastically reduces dark current. The article also explores the integration
Albin Colle   +17 more
wiley   +1 more source

On detection of Gaussian stochactic vectors

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2018
The problem of minimax detection of a Gaussian random signal vector in white Gaussian additive noise has been considered. We suppose that an unknown vector s of the signal vector intensities belongs to the given set E.
M.V. Burnashev
doaj  

Rudin-Osher-Fatemi Total Variation Denoising using Split Bregman

open access: yesImage Processing On Line, 2012
Denoising is the problem of removing noise from an image. The most commonly studied case is with additive white Gaussian noise (AWGN), where the observed noisy image f is related to the underlying true image u by f=u+η and η is at each point in space ...
Pascal Getreuer
doaj   +1 more source

Gaussian estimates for the density of the non-linear stochastic heat equation in any space dimension

open access: yes, 2010
In this paper, we establish lower and upper Gaussian bounds for the probability density of the mild solution to the stochastic heat equation with multiplicative noise and in any space dimension. The driving perturbation is a Gaussian noise which is white
Nualart, Eulalia   +1 more
core  

Additive Manufacture of Diamond:Titanium Hybrid Quantum Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT Additive manufacture represents one of the most advanced techniques for the creation of complex parts for applications as diverse as aerospace and implant surgery. However, a challenge with bespoke manufacture of metal parts is the incorporation of sensor elements in a fashion compatible with the 3D printing process.
Daniel Stavrevski   +12 more
wiley   +1 more source

Comparative Study between Several Direction of Arrival Estimation Methods

open access: yesJournal of Telecommunications and Information Technology, 2014
In this paper a comparative study, restricted to one-dimensional stationary case, between several Direction of Arrival (DOA) estimation algorithms of narrowband signals is presented.
Youssef Khmou, Said Safi, Miloud Frikel
doaj   +1 more source

The Estimation of Radial Exponential Random Vectors in Additive White Gaussian Noise

open access: yesWireless Sensor Network, 2009
Image signals are always disturbed by noise during their transmission, such as in mobile or network communication. The received image quality is significantly influenced by noise. Thus, image signal denoising is an indispensable step during image processing.
Pichid KITTISUWAN   +2 more
openaire   +2 more sources

LFA: A Lattice Fourier Analyzer for Quantitative In Situ EC‐STM of Adsorbate–Substrate Superstructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Although electrochemical scanning tunneling microscopy provides atomic‐scale access to electrified interfaces, quantitative in situ and operando investigations suffer from drift‐induced distortions. This work introduces the Lattice Fourier Analyzer (LFA), which employs substrate‐anchored affine drift correction in reciprocal space to recover precise ...
Rafał Lewandków   +4 more
wiley   +1 more source

Overlapped Multiplexing Principle and an Improved Capacity on Additive White Gaussian Noise Channel

open access: yesIEEE Access, 2018
A new overlapped multiplexing principle is revealed that points out the overlapping between consecutive and adjacent data symbols is never an interference but a beneficial coding constraint relation. The heavier the overlapping the higher the coding gain.
Daoben Li
doaj   +1 more source

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