Results 51 to 60 of about 1,321,155 (184)

Channel Estimation And Multiuser Detection In Asynchronous Satellite Communications

open access: yes, 2010
In this paper, we propose a new method of channel estimation for asynchronous additive white Gaussian noise channels in satellite communications.
Bouallegue, Ridha, Chaouech, Helmi
core   +1 more source

Iterative Estimation in Turbo Equalization Process [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2014
This paper presents the iterative estimation in turbo equalization process. Turbo equalization is the process of reception in which equalization and decoding are done together, not as separate processes.
MORGOS Lucian   +2 more
doaj  

Semi-hierarchical based motion estimation algorithm for the dirac video encoder [PDF]

open access: yes, 2008
Having fast and efficient motion estimation is crucial in today’s advance video compression technique since it determines the compression efficiency and the complexity of a video encoder.
Cosmas, J, Loo, KK, Tun, M
core  

On Probability Estimation by Exponential Smoothing

open access: yes, 2015
Probability estimation is essential for every statistical data compression algorithm. In practice probability estimation should be adaptive, recent observations should receive a higher weight than older observations.
Mattern, Christopher
core   +1 more source

Probability Density Estimation Using Delta Sequences

open access: yesThe Annals of Statistics, 1979
Let $X_1, X_2, \cdots, X_n$ be i.i.d. random variables with common density function $f$. A method of density estimation based on "delta sequences" is studied and mean square rates established. This method generalizes certain others including kernel estimators, orthogonal series estimators, Fourier transform estimators, and the histogram.
Walter, G., Blum, J.
openaire   +2 more sources

Data-Aided Chromatic Dispersion Estimation for Polarization Multiplexed Optical Systems

open access: yesIEEE Photonics Journal, 2012
We propose a full transmission link chromatic dispersion (CD) estimation technique for polarization-multiplexed coherent optical single carrier system using data-aided channel estimation and least square quadratic fit. New training sequences based on Chu
Cuong C. Do   +6 more
doaj   +1 more source

Estimating the Entropy of DNA Sequences

open access: yesJournal of Theoretical Biology, 1997
The Shannon entropy is a standard measure for the order state of symbol sequences, such as, for example, DNA sequences. In order to incorporate correlations between symbols, the entropy of n-mers (consecutive strands of n symbols) has to be determined.
Schmitt, Armin O., Herzel, Hanspeter
openaire   +3 more sources

Exploiting Sequence Analysis for Accurate Light-Field Depth Estimation

open access: yesIEEE Access, 2023
Depth estimation for light field (LF) images is the cornerstone of many applications of light field cameras, such as 3D reconstruction, defects inspection, face liveness detection, and so forth.
Lei Han   +3 more
doaj   +1 more source

Typical Algorithms for Estimating Hurst Exponent of Time Sequence: A Data Analyst’s Perspective

open access: yesIEEE Access
The Hurst exponent is a significant metric for characterizing time sequences with long-term memory property and it arises in many fields such as physics, engineering, mathematics, statistics, economics, psychology, and so on.
Hong-Yan Zhang   +3 more
doaj   +1 more source

Sequential joint signal detection and signal-to-noise ratio estimation

open access: yes, 2017
The sequential analysis of the problem of joint signal detection and signal-to-noise ratio (SNR) estimation for a linear Gaussian observation model is considered.
Fauß, M.   +3 more
core   +1 more source

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