Results 21 to 30 of about 21,961,403 (345)

DOA Estimation Based on Real-Valued Cross Correlation Matrix of Coprime Arrays

open access: yesSensors, 2017
A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the ...
Jianfeng Li, Feng Wang, Defu Jiang
doaj   +1 more source

SCaLAr – A surrounding spherical cap loudspeaker array for flexible generation and evaluation of virtual acoustic environments

open access: yesActa Acustica, 2020
Introduction: Surrounding spherical loudspeaker arrays facilitate the application of various spatial audio reproduction methods and can be used for a broad range of acoustic measurements and perceptual evaluations.
Pausch Florian   +2 more
doaj   +1 more source

Astronomical Image Processing with Array Detectors [PDF]

open access: yes, 2007
We address the question of astronomical image processing from data obtained with array detectors. We define and analyze the cases of evenly, regularly, and irregularly sampled maps for idealized (i.e., infinite) and realistic (i.e., finite) detectors. We
Houde, Martin, Vaillancourt, John E.
core   +2 more sources

Spatial audio signal processing for binaural reproduction of recorded acoustic scenes – review and challenges

open access: yesActa Acustica, 2022
Spatial audio has been studied for several decades, but has seen much renewed interest recently due to advances in both software and hardware for capture and playback, and the emergence of applications such as virtual reality and augmented reality.
Rafaely Boaz   +9 more
doaj   +1 more source

An Overview of Enhanced Massive MIMO With Array Signal Processing Techniques [PDF]

open access: yesIEEE Journal on Selected Topics in Signal Processing, 2019
In the past ten years, there have been tremendous research progresses on massive MIMO systems, most of which stand from the communications viewpoint. A new trend to investigate massive MIMO, especially for the sparse scenario like millimeter wave (mmWave)
Mingjin Wang   +3 more
semanticscholar   +1 more source

Distributed processing of a fractal array beamformer [PDF]

open access: yes, 2013
Fractals have been proven as potential candidates for satellite flying formations, where its different elements represent a thinned array. The distributed and low power nature of the nodes in this network motivates distributed processing when using such ...
Corr, Jamie   +4 more
core   +1 more source

Low-Complexity Propagator Based Two Dimensional Angle Estimation for Coprime MIMO Radar

open access: yesIEEE Access, 2018
The problem of 2-D angle estimation for coprime multiple-input multiple-output (MIMO) radar is considered, and a low-complexity propagator based method is proposed.
Jianfeng Li, Defu Jiang
doaj   +1 more source

A Linear Inversion Approach to Measuring the Composition and Directionality of the Seismic Noise Field

open access: yesRemote Sensing, 2021
We develop a linear inversion technique for measuring the modal composition and directionality of ambient seismic noise. The technique draws from similar techniques used in astrophysics and gravitational-wave physics, and relies on measuring cross ...
Patrick M. Meyers   +7 more
doaj   +1 more source

Holographic array processing using truncated arrays [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1993
Imperfect knowledge of the salient characteristics of the propagation medium limits the performance of acoustic array processors at long ranges in the ocean. Holographic and phase conjugation techniques can be used to diminish the range integrated effect of the medium and reconstruct the wave front in the vicinity of a scatterer or other signal source.
Azmi A. Al-Kurd, Robert P. Porter
openaire   +1 more source

Efficient Iterative Processing in the SciDB Parallel Array Engine [PDF]

open access: yes, 2015
Many scientific data-intensive applications perform iterative computations on array data. There exist multiple engines specialized for array processing.
Balazinska, Magdalena   +3 more
core   +2 more sources

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