Results 11 to 20 of about 3,924,808 (301)

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 ...
Weiss, Stephan   +4 more
core   +4 more sources

Advanced array processing techniques and systems [PDF]

open access: yes, 2009
Research and development on smart antennas, which are recognized as a promising technique to improve the performance of mobile communications, have been extensive in the recent years.
Li, M.
core   +3 more sources

Multi-Objective NSGA-II Optimization for Broadband Beamforming with Spherical Harmonic Domain Assistance

open access: yesSensors, 2023
Sidelobe suppression is a major challenge in wideband beamforming for acoustic research, especially in high noise and reverberation environments. In this paper, we propose a multi-objective NSGA-II wideband beamforming method based on a spherical ...
Zhenghong Liu   +4 more
doaj   +1 more source

A phased array-based method for damage detection and localization in thin plates [PDF]

open access: yes, 2009
A method for damage localization based on the phased array idea has been developed. Four arrays oftransducers are used to perform a beam-forming procedure.
Wandowski, T.   +3 more
core   +4 more sources

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

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

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

Query processing techniques for arrays [PDF]

open access: yesProceedings of the 1999 ACM SIGMOD international conference on Management of data, 1999
Arrays are an appropriate data model for images, gridded output from computational models, and other types of data. This paper describes an approach to array query processing. Queries are expressed in AML, a logical algebra that is easily extended with user-defined functions to support a wide variety of array operations.
Arunprasad P. Marathe, Kenneth Salem
openaire   +2 more sources

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

Dimension degradation of fractionally spaced super-exponential algorithm for sparse channel equalisation

open access: yesThe Journal of Engineering, 2019
Fractionally spaced super-exponential (FSSE) algorithm has the disadvantage of computational complexity since it exploits high-order statistics explicitly.
JinLiang Bai   +4 more
doaj   +1 more source

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