Results 41 to 50 of about 833,530 (282)

Continuous-variable quantum key distribution protocols over noisy channels [PDF]

open access: yes, 2008
A continuous-variable quantum key distribution protocol based on squeezed states and heterodyne detection is introduced and shown to attain higher secret key rates over a noisy line than any other one-way Gaussian protocol.
Cerf, Nicolas J., Garcia-Patron, Raul
core   +2 more sources

Peningkatan Kualitas Citra CT-Scan dengan Penggabungan Metode Filter Gaussian dan Filter Median

open access: yesJurnal Teknologi Informasi dan Ilmu Komputer, 2019
Perkembangan alat teknologi akuisisi citra medis, satu diantaranya adalah teknologi yang lazim disebut CT-scan. CT-Scan (Computed Tomography Scan) adalah prosedur untuk mendapatkan gambaran dari berbagai area kecil dari tulang termasuk tengkorak kepala ...
Sumijan Sumijan Sumijan   +2 more
doaj   +1 more source

Mixed Noise Removal Using Adaptive Median Based Non-Local Rank Minimization

open access: yesIEEE Access, 2021
In this paper, we present an innovative mechanism for image restoration problems in which the image is corrupted by a mixture of additive white Gaussian noise (AWGN) and impulse noise (IN). Mixed noise removal is much more challenging problem in contrast
Dai-Gyoung Kim   +5 more
doaj   +1 more source

Asymptotic properties of the MLE for the autoregressive process coefficients under stationary Gaussian noise

open access: yes, 2013
In this paper we are interested in the Maximum Likelihood Estimator (MLE) of the vector parameter of an autoregressive process of order $p$ with regular stationary Gaussian noise.
Brouste, Alexandre   +2 more
core   +1 more source

A Coordinate System for Gaussian Networks [PDF]

open access: yes, 2010
This paper studies network information theory problems where the external noise is Gaussian distributed. In particular, the Gaussian broadcast channel with coherent fading and the Gaussian interference channel are investigated.
Abbe, Emmanuel, Zheng, Lizhong
core   +4 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Dynamics of Limit Cycle Oscillator Subject to General Noise

open access: yes, 2010
The phase description is a powerful tool for analyzing noisy limit cycle oscillators. The method, however, has found only limited applications so far, because the present theory is applicable only to the Gaussian noise while noise in the real world often
A. Pikovsky   +6 more
core   +1 more source

Data analysis strategies for the detection of gravitational waves in non-Gaussian noise [PDF]

open access: yes, 1999
In order to analyze data produced by the kilometer-scale gravitational wave detectors that will begin operation early next century, one needs to develop robust statistical tools capable of extracting weak signals from the detector noise.
A. Abramovici   +7 more
core   +3 more sources

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Spectra for the Product of Gaussian Noises [PDF]

open access: yesMetrology and Measurement Systems, 2012
Abstract Products of Gaussian noises often emerge as the result of non-linear detection techniques or as parasitic effects, and their proper handling is important in many practical applications, including fluctuation-enhanced sensing, indoor air or environmental quality monitoring, etc.
Kish László Béla   +3 more
openaire   +4 more sources

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