Results 41 to 50 of about 165,035 (282)

Design of Robust Sparse Wideband Beamformers with Circular-Model Mismatches Based on Reweighted ℓ_2,1 Optimization

Remote Sensing, 2023
Wideband beamformers have been widely studied in wireless communication, remote sensing and so on. Generally speaking, to improve the spatial filtering ability of beamformers, there usually needs more sensors, which implies increased computational ...
Yu Bao, Haixiao Zhang, Xiaoli Liu, Yuhan Jiang, Yu Tao   +4 more
doaj   +1 more source

Sensor Selection for an Electronic Tongue for the Rapid Detection of Paralytic Shellfish Toxins: A Case Study

Chemosensors
The performance of an electronic tongue can be optimized by varying the number and types of sensors in the array and by employing data-processing methods.
Mariana Raposo, Maria Teresa S. R. Gomes, Sara T. Costa, Maria João Botelho, Alisa Rudnitskaya   +4 more
doaj   +1 more source

Optimizing floating guard ring designs for FASPAX N-in-P silicon sensors

, 2016
FASPAX (Fermi-Argonne Semiconducting Pixel Array X-ray detector) is being developed as a fast integrating area detector with wide dynamic range for time resolved applications at the upgraded Advanced Photon Source (APS.) A burst mode detector with ...
Bradford, Robert, Deptuch, Gregory, Fahim, Farah, Lipton, Ronald, Madden, Tim, Shin, Kyung-Wook, Zimmerman, Tom   +6 more
core   +1 more source

Machine learning for gravitational-wave detection: surrogate Wiener filtering for the prediction and optimized cancellation of Newtonian noise at Virgo

, 2020
The cancellation of noise from terrestrial gravity fluctuations, also known as Newtonian noise (NN), in gravitational-wave detectors is a formidable challenge. Gravity fluctuations result from density perturbations associated with environmental fields, e.
Badaracco, F, Bertolini, A, Bulik, T, Fiori, I, Harms, J, Idzkowski, B, Kutynia, A, Nikliborc, K, Paoletti, F, Paoli, A, Rei, L, Suchinski, M   +11 more
core   +1 more source

Multiple and single snapshot compressive beamforming

, 2015
For a sound field observed on a sensor array, compressive sensing (CS) reconstructs the direction-of-arrival (DOA) of multiple sources using a sparsity constraint.
Gerstoft, Peter, Mecklenbräuker, Christoph F., Xenaki, Angeliki   +2 more
core   +2 more sources

Number of Coherent Nodes Estimation Based on Multiple Feature Extraction in Wireless Sensor Network

IEEE Access, 2020
Knowing number of nodes is the precondition of their locating and estimation of other parameters in wireless sensor network, actually it can be evaluated according to the signal received by the sensor array.
Jiaqi Zhen, Xiaoli Zhang
doaj   +1 more source

Partial Relaxation Approach: An Eigenvalue-Based DOA Estimator Framework

, 2018
In this paper, the partial relaxation approach is introduced and applied to DOA estimation using spectral search. Unlike existing methods like Capon or MUSIC which can be considered as single source approximations of multi-source estimation criteria, the
Pesavento, Marius, Trinh-Hoang, Minh, Viberg, Mats   +2 more
core   +1 more source

Application of a Polypyrrole Sensor Array Integrated into a Smart Electronic Tongue for the Discrimination of Milk Adulterated with Sucrose

International Journal of Technology, 2023
This work presents the use of a smart electronic tongue for discriminating adulterated milk samples with various concentrations of sucrose. The smart electronic tongue was integrated by a voltammetric sensor array from polypyrrole doped with various ...
Alvaro Arrieta, Isora Barrera, Jorge Mendoza   +2 more
doaj   +1 more source

Joint ML calibration and DOA estimation with separated arrays

, 2016
This paper investigates parametric direction-of-arrival (DOA) estimation in a particular context: i) each sensor is characterized by an unknown complex gain and ii) the array consists of a collection of subarrays which are substantially separated from ...
Boyer, Rémy, Korso, Mohammed Nabil El, Larzabal, Pascal, Ollier, Virginie, Pesavento, Marius   +4 more
core   +3 more sources

Accurate angle-of-arrival measurement using particle swarm optimization [PDF]

, 2010
As one of the major methods for location positioning, angle-of-arrival (AOA) estimation is a significant technology in radar, sonar, radio astronomy, and mobile communications.
Hayward, G., Ho, Kwok Shun, Li, M.
core   +1 more source