Results 1 to 10 of about 6,870,463 (245)

Scalable kernel-based minimum mean square error estimate for light-field image compression

open access: yesEURASIP Journal on Image and Video Processing, 2018
Light-field imaging can capture both spatial and angular information of a 3D scene and is considered as a prospective acquisition and display solution to supply a more natural and fatigue-free 3D visualization.
Zhixiang You, Ping An, Deyang Liu
doaj   +1 more source

Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics

open access: yesIEEE Access, 2020
For linear dynamic systems with Gaussian noise, the Kalman filter provides the Minimum Mean-Square Error (MMSE) state estimation by tracking the posterior. Similarly, for systems with Gaussian Mixture (GM) noise distributions, a bank of Kalman filters or
Leila Pishdad, Fabrice Labeau
doaj   +1 more source

Performance analysis of V-BLAST signal detection algorithm in MIMO system

open access: yes上海师范大学学报. 自然科学版, 2021
In this paper, the commonly used minimum mean square error algorithm, zero-forcing detection algorithm, nonlinear detection algorithm and orthogonal triangular decomposition detection algorithm in the vertical layered space-time detection algorithm were ...
ZHANG Ming   +3 more
doaj   +1 more source

A Bayesian quantum state tomography along with adaptive frameworks based on linear minimum mean square error criterion

open access: yesNew Journal of Physics, 2023
Quantum state tomography (QST) is essential for characterizing unknown quantum states. Several methods of estimating quantum states already exist and can be classified mainly into three broad classes.
Subhadeep Mondal, Amit Kumar Dutta
doaj   +1 more source

Discrete Fourier Transform with Denoise Model Based Least Square Wiener Channel Estimator for Channel Estimation in MIMO-OFDM

open access: yesEntropy, 2022
Multiple-input Multiple-Output (MIMO) systems require orthogonal frequency division multiplexing to operate efficiently in multipath communication (OFDM).
Dhanasekaran S   +5 more
doaj   +1 more source

Optimal Pilot Design and Error Rate Analysis of Block Transmission Systems in the Presence of Channel State Information (CSI) Estimation Error

open access: yesIEEE Access, 2020
This work proposes novel techniques toward the design of optimal pilot sequences to perform channel estimation in block transmission systems over wideband frequency selective wireless fading channels.
Manjeer Majumder, Aditya K. Jagannatham
doaj   +1 more source

Poisson-Gaussian Noise Reduction for X-Ray Images Based on Local Linear Minimum Mean Square Error Shrinkage in Nonsubsampled Contourlet Transform Domain

open access: yesIEEE Access, 2021
Noise reduction is important for X-ray images because it can reduce radiation exposure to patients. X-ray image noise has a Poisson-Gaussian distribution, and recently, noise analysis and removal in multiscale transformations have been widely implemented.
Sangyoon Lee, Moon Gi Kang
doaj   +1 more source

Zero-Forcing and Minimum Mean-Square Error Multiuser Detection in Generalized Multicarrier DS-CDMA Systems for Cognitive Radio

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
In wireless communications, multicarrier direct-sequence code-division multiple access (MC DS-CDMA) constitutes one of the highly flexible multiple access schemes.
Lie-Liang Yang, Li-Chun Wang
doaj   +2 more sources

Mean square cross error: performance analysis and applications in non-Gaussian signal processing

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
Most of the cost functions of adaptive filtering algorithms include the square error, which depends on the current error signal. When the additive noise is impulsive, we can expect that the square error will be very large.
Yunxiang Zhang   +3 more
doaj   +1 more source

Alternating minimum mean square error hybrid beamforming algorithm in mmWave MIMO system

open access: yesDianxin kexue, 2017
The two-stage hybrid beamforming architecture can solve the problem of limited number of RF chains effectively.However,it is still difficult to design a hybrid beamforming algorithm with better performance.In order to achieve higher spectral efficiency ...
Min SHEN, Hao XU, Yun HE, Pengguang ZHOU
doaj   +2 more sources

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