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Generalization of the classical delay-and-sum technique by using nonlinear dirac-delta functions
(Institute of Electrical and Electronics Engineers Inc., 2017-08)
We presented a generalization of the delay-and-sum beamforming based on the Dirac-Delta functions but with nonlinear argument. For this end, a closed-form expression of the beampattern mathcal{B}(r)=\sum\nolimits-{k,q}w( ...
Acoustic Imaging of In-Duct Aeroengine Noise Sources Using Rotating Beamforming and Phased Arrays
(Ieee-inst Electrical Electronics Engineers Inc, 2017-09-01)
An in-duct rotating beamforming technique, using a wall-mounted array of microphones placed within a long duct, was developed for locating broadband noise sources from an aeroengine fan. The technique was experimentally ...
Improvements in closed-section wind-tunnel beamforming experiments of acoustic sources distributed along a line
(2019-12-15)
Phased-array microphone techniques are widely used tools for the measurement and analysis of aeroacoustic noise sources. Nevertheless, beamforming results of sources distributed along a line, such as airfoil trailing-edge ...
A multiple beamforming network for unequally spaced linear array based on CORPS
(Hindawi Publishing Corporation, 2015)
A multiple beamforming network for unequally spaced linear array based on CORPS
(Hindawi Publishing Corporation, 2015)
Generalized inverse beamforming with optimized regularization strategy
(Academic Press Ltd- Elsevier Science LtdLondonInglaterra, 2011)
Equalization and beamforming proposals for modern communication systems
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO, 2019-06-07)
Este trabalho tem como objetivo apresentar novas propostas de equalização e beamforming associada a sistemas modernos de comunicação digital. São apresentadas três
propostas nos quais a primeira é caracterizada por uma ...
Beamforming echo-localization system using multitone excitation signals
(Institute of Electrical and Electronics Engineers Inc., 2017)
Determining the position of a target is the central issue in several engineering problems, from computer vision to sonar or radar systems. Echo-localization systems use the reflected sound waves to extract information from ...