Results 41 to 50 of about 6,381,999 (244)

Microphone array signal processing for robot audition

open access: yesJoint Workshop on Hands-free Speech Communication and Microphone Arrays, 2017
Robot audition for humanoid robots interacting naturally with humans in an unconstrained real-world environment is a hitherto unsolved challenge. The recorded microphone signals are usually distorted by background and interfering noise sources (speakers)
Heinrich W. Löllmann   +6 more
semanticscholar   +1 more source

Tensor-based approach to the co-prime planar array signal processing

open access: yesTongxin xuebao, 2020
For the co-prime planar array (CPPA) consisting of two sparse uniform rectangular array (URA),a new processing method based on tensor algebra was proposed to enhance the degrees of freedom (DoF).By dividing each URA into some overlapping subarrays,the ...
Wei RAO, Yufeng GUI, Dan LI
doaj   +2 more sources

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

A Discretization-Free Sparse and Parametric Approach for Linear Array Signal Processing [PDF]

open access: yesIEEE Transactions on Signal Processing, 2013
Direction of arrival (DOA) estimation in array processing using uniform/sparse linear arrays is concerned in this paper. While sparse methods via approximate parameter discretization have been popular in the past decade, the discretization may cause ...
Zai Yang, Li-Hua Xie, Ci-Sheng Zhang
semanticscholar   +1 more source

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

open access: yesFEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Rapid High-Resolution Wavenumber Extraction from Ultrasonic Guided Waves Using Adaptive Array Signal Processing

open access: yes, 2018
Quantitative ultrasound techniques for assessment of bone quality have been attracting significant research attention. The axial transmission technique, which involves analysis of ultrasonic guided waves propagating along cortical bone, has been proposed
Shigeaki Okumura   +5 more
semanticscholar   +1 more source

Robust GNSS Receivers by Array Signal Processing: Theory and Implementation

open access: yesProceedings of the IEEE, 2016
One of the main vulnerabilities of GNSS receivers is their exposure to intentional or unintentional jamming signals, which could even cause service unavailability.
C. Fernández-Prades   +2 more
semanticscholar   +1 more source

The Signal Processing Firmware for the Low Frequency Aperture Array [PDF]

open access: yes, 2017
The signal processing firmware that has been developed for the Low Frequency Aperture Array component of the Square Kilometre Array (SKA) is described.
G. Comoretto   +24 more
semanticscholar   +1 more source

Symmetric sparse linear array for active imaging

open access: yes, 2018
Sparse sensor arrays can achieve significantly more degrees of freedom than the number of elements by leveraging the co-array, a virtual structure that arises from the far field narrowband signal model.
Robin Rajamaki   +3 more
core   +1 more source

A Mobile Ferromagnetic Shape Detection Sensor Using a Hall Sensor Array and Magnetic Imaging

open access: yesSensors, 2011
This paper presents a Mobile Hall Sensor Array system for the shape detection of ferromagnetic materials that are embedded in walls or floors. The operation of the Mobile Hall Sensor Array system is based on the principle of magnetic flux leakage to ...
Nashiren Farzilah Mailah   +4 more
doaj   +1 more source

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