Results 31 to 40 of about 833,530 (282)

A Novel Anti-Jamming Technique for INS/GNSS Integration Based on Black Box Variational Inference

open access: yesApplied Sciences, 2021
In this paper, a novel anti-jamming technique based on black box variational inference for INS/GNSS integration with time-varying measurement noise covariance matrices is presented. We proved that the time-varying measurement noise is more similar to the
Ping Dong, Jianhua Cheng, Liqiang Liu
doaj   +1 more source

Superior Resilience of Non-Gaussian Entanglement against Local Gaussian Noises

open access: yesEntropy, 2022
Entanglement distribution task encounters a problem of how the initial entangled state should be prepared in order to remain entangled the longest possible time when subjected to local noises. In the realm of continuous-variable states and local Gaussian channels it is tempting to assume that the optimal initial state with the most robust entanglement ...
Sergey Filippov, Alena Termanova
openaire   +4 more sources

Estimation from quantized Gaussian measurements: when and how to use dither [PDF]

open access: yes, 2019
Subtractive dither is a powerful method for removing the signal dependence of quantization noise for coarsely quantized signals. However, estimation from dithered measurements often naively applies the sample mean or midrange, even when the total noise ...
Dawson, Robin M. A.   +2 more
core   +2 more sources

Robust optimality of Gaussian noise stability [PDF]

open access: yesJournal of the European Mathematical Society, 2015
We prove that under the Gaussian measure, half-spaces are uniquely the most noise stable sets. We also prove a quantitative version of uniqueness, showing that a set which is almost optimally noise stable must be close to a half-space. This extends a theorem of Borell, who proved the same result but without uniqueness, and it also answers a question of
Mossel, Elchanan, Neeman, Joe
openaire   +4 more sources

An Improved Gaussian Sum Extended Kalman Filter With Colored Noise for GNSS/SINS Tightly Coupled Positioning and Attitude Determination Systems

open access: yesIEEE Access
The Gaussian sum extended Kalman filter (GSEKF), as a nonlinear non-Gaussian filter, disregards the impact of colored noise components in non-Gaussian noise engendered by external interference, which may compromise the estimation accuracy in global ...
Qing Dai   +3 more
doaj   +1 more source

Hybrid FWF Model For Gaussian Noise Reduction From Images

open access: yesJISR on Computing, 2020
In this paper, the image efficiency is improved by using hybrid model of wiener’s filter and fuzzy filter. It’s a challenging task to remove Gaussian noise (GN) from an image and to protect the picture edges. The Fuzzy - Wiener filter (FWF) hybrid model
Lubna Farhi, Farhan Ur Rehman
doaj   +1 more source

Performance of DPSK Signals with Quadratic Phase Noise

open access: yes, 2004
Nonlinear phase noise induced by the interaction of fiber Kerr effect and amplifier noises is a quadratic function of the electric field. When the dependence between the additive Gaussian noise and the quadratic phase noise is taking into account, the ...
Ho, Keang-Po
core   +2 more sources

Statistics of voltage fluctuations in resistively shunted Josephson junctions

open access: yes, 2010
The intrinsic nonlinearity of Josephson junctions converts Gaussian current noise in the input into non-Gaussian voltage noise in the output. For a resistively shunted Josephson junction with white input noise we determine numerically exactly the ...
A. Barone   +6 more
core   +1 more source

Bayesian Posterior Contraction Rates for Linear Severely Ill-posed Inverse Problems [PDF]

open access: yes, 2013
We consider a class of linear ill-posed inverse problems arising from inversion of a compact operator with singular values which decay exponentially to zero. We adopt a Bayesian approach, assuming a Gaussian prior on the unknown function.
Agapiou, Sergios   +2 more
core   +3 more sources

Effect of time delay on the onset of synchronization of the stochastic Kuramoto model

open access: yes, 2010
We consider the Kuramoto model of globally coupled phase oscillators with time-delayed interactions, that is subject to the Ornstein-Uhlenbeck (Gaussian) colored or the non-Gaussian colored noise.
Bidhan Chandra Bag   +8 more
core   +1 more source

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