Results 41 to 50 of about 1,492,451 (279)

Complex multitask compressive sensing using Laplace priors

open access: yesElectronics Letters, 2021
Most existing Bayesian compressive sensing (BCS) algorithms are developed in real numbers. This results in many difficulties in applying BCS to solve complex‐valued problems.
Qilei Zhang, Zhen Dong, Yongsheng Zhang
doaj   +1 more source

Complex multitask Bayesian compressive sensing [PDF]

open access: yes2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
An effective complex multitask Bayesian compressive sensing (CMT-BCS) algorithm is proposed to recover sparse or group sparse complex signals. The existing multitask Bayesian compressive sensing (MT-CS) algorithm is powerful in recovering multiple real-valued sparse solutions. However, a large class of sensing problems deal with complex values.
Qisong Wu   +3 more
openaire   +2 more sources

Modified complex multitask Bayesian compressive sensing using Laplacian scale mixture prior

open access: yesIET Signal Processing, 2022
Bayesian compressive sensing (BCS) is an important sub‐class of sparse signal reconstruction algorithms. In this paper, a modified complex multitask Bayesian compressive sensing (MCMBCS) algorithm using the Laplacian scale mixture (LSM) prior is proposed.
Qilei Zhang, Lei Yu, Feng He, Yifei Ji
doaj   +1 more source

Low-Rank and Sparse Matrix Recovery for Hyperspectral Image Reconstruction Using Bayesian Learning

open access: yesSensors, 2022
In order to reduce the amount of hyperspectral imaging (HSI) data transmission required through hyperspectral remote sensing (HRS), we propose a structured low-rank and joint-sparse (L&S) data compression and reconstruction method.
Yanbin Zhang   +4 more
doaj   +1 more source

Bayesian compressed sensing in ultrasound imaging [PDF]

open access: yes2011 4th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2011
Following our previous study on compressed sensing for ultrasound imaging, this paper proposes to exploit the image sparsity in the frequency domain within a Bayesian approach. A Bernoulli-Gaussian prior is assigned to the Fourier transform of the ultrasound image in order to enforce sparsity and to reconstruct the image via Bayesian compressed sensing.
Celine Quinsac   +4 more
openaire   +1 more source

A BCS microwave imaging algorithm for object detection and shape reconstruction tested with experimental data

open access: yesElectronics Letters, 2021
An approach based on the Green function and the Born approximation is used for impulsive radio ultra‐wideband microwave imaging, in which a permittivity map of the illuminated scenario is estimated using the scattered fields measured at several positions.
Nicolás Zilberstein   +2 more
doaj   +1 more source

Multipath Time-delay Estimation with Impulsive Noise via Bayesian Compressive Sensing [PDF]

open access: yes, 2023
Multipath time-delay estimation is commonly encountered in radar and sonar signal processing. In some real-life environments, impulse noise is ubiquitous and significantly degrades estimation performance.
Ji, Xingyu, Cheng, Lei, Zhao, Hangfang
core   +1 more source

Robust Bayesian Compressed sensing

open access: yesCoRR, 2016
We consider the problem of robust compressed sensing whose objective is to recover a high-dimensional sparse signal from compressed measurements corrupted by outliers. A new sparse Bayesian learning method is developed for robust compressed sensing. The basic idea of the proposed method is to identify and remove the outliers from sparse signal recovery.
Qian Wan 0003   +3 more
openaire   +2 more sources

Variational Bayesian Algorithm for Quantized Compressed Sensing [PDF]

open access: yesIEEE Transactions on Signal Processing, 2013
Accepted by IEEE Trans. Signal Processing.
Zai Yang, Lihua Xie 0001, Cishen Zhang
openaire   +4 more sources

Fast and efficient compressive sensing using structurally random matrices [PDF]

open access: yes, 2012
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2011 IEEE. Personal use of this material is permitted.
Trac D. Tran   +7 more
core   +1 more source

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