Results 21 to 30 of about 12,040 (299)

Analysis of Wide-Frequency Dense Signals Based on Fast Minimization Algorithm

open access: yesEnergies, 2022
To improve the detection speed for wide-frequency dense signals (WFDSs), a fast minimization algorithm (FMA) was proposed in this study. Firstly, this study modeled the WFDSs and performed a Taylor-series expansion of the sampled model.
Zehui Yuan   +4 more
doaj   +1 more source

A Non-Convex Hybrid Overlapping Group Sparsity Model with Hyper-Laplacian Prior for Multiplicative Noise

open access: yesFractal and Fractional, 2023
Multiplicative noise removal is a quite challenging problem in image denoising. In recent years, hyper-Laplacian prior information has been successfully introduced in the image denoising problem and significant denoising effects have been achieved.
Jianguang Zhu   +3 more
doaj   +1 more source

A symmetric alternating minimization algorithm for total variation minimization [PDF]

open access: yesSignal Processing, 2020
to appear in Signal ...
Yuan Lei, Jiaxin Xie
openaire   +2 more sources

Hybrid Precoding for Millimeter Wave MIMO: Trace Optimization Approach

open access: yesIEEE Access, 2022
The hybrid precoding problem in point-to-point millimeter wave (mmWave) multiple input multiple output (MIMO) for narrowband channel has been established as a Frobenius norm minimization problem.
Prabhat Raj Gautam, Li Zhang
doaj   +1 more source

Multimarginal Optimal Transport by Accelerated Alternating Minimization [PDF]

open access: yes, 2020
We consider a multimarginal optimal transport, which includes as a particular case the Wasserstein barycenter problem. In this problem one has to find an optimal coupling between m probability measures, which amounts to finding a tensor of the order m ...
Nazarii Tupitsa   +7 more
core   +1 more source

Data for: A symmetric alternating minimization algorithm for total variation minimization

open access: yes, 2020
A symmetric alternating minimization algorithm for total variation ...
Xie, J
core   +2 more sources

A Novel Speckle Noise Removal Algorithm Based on ADMM and Energy Minimization Method

open access: yesJournal of Function Spaces, 2020
Speckle noise removal in medical ultrasound images is a challenging task. In this paper, a new model is proposed to removal speckle noise, alternating direction method of multipliers algorithm is employed to solve the new energy minimization model.
Bo Chen   +4 more
doaj   +1 more source

Extrapolation Accelerated Linear Alternating Direction Multiplier Method for Split Feasibility Problems and Its Global Convergence [PDF]

open access: yesJisuanji kexue, 2023
This paper deals with a linear alternating direction multiplier method (ADMM) for Split feasibility problems (SFP).More specifically,the SFP has been formulated as a separable convex minimization problem with linear constraints,and then extrapolation ...
LIU Yang, XUE Zhonghui, WANG Yongquan, CAO Yongsheng
doaj   +1 more source

Hybrid Precoding Design for MIMO System With One-Bit ADC Receivers

open access: yesIEEE Access, 2018
When wireless transmission is performed over the bandwidth in the order of a gigahertz, high-resolution analog-to-digital converters (ADCs), and the large number of radio frequency chains significantly increase the power consumption.
Qitong Hou   +3 more
doaj   +1 more source

Reliability analysis for NOMA‐based UAV assisted short packet communication

open access: yesIET Communications, 2023
This paper introduces the short packet transmission in non‐orthogonal multiple access (NOMA)‐based unmanned aerial vehicle (UAV) assisted relay communication system.
Hang Hu   +6 more
doaj   +1 more source

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