Results 61 to 70 of about 239,474 (208)

Jedan pristup u oceni efektivnosti sistema za zvukometrijsko izviđanje 'Boomerang' / One approach to the evaluation of the effectiveness of the boomerang system for acoustic source localization and identification

open access: yesVojnotehnički Glasnik, 2010
U radu je prikazan jedan pristup u oceni efektivnosti sistema za zvukometrijsko izviđanje. Sistem za zvukometrijsko izviđanje modelovan je kao sistem masovnog opsluživanja, opisana su stanja sistema, parametri i izveden izraz za određivanje verovatnoće ...
Miroslav R. Terzić
doaj   +1 more source

Towards Informative Path Planning for Acoustic SLAM [PDF]

open access: yes, 2016
Acoustic scene mapping is a challenging task as microphone arrays can often localize sound sources only in terms of their directions. Spatial diversity can be exploited constructively to infer source-sensor range when using microphone arrays installed on
Evers, C, Moore, A, Naylor, P
core  

Seabed Attenuation In Water Saturated Sands On New Jersey Continental Shelf In 50-3000 Hz Band [PDF]

open access: yes, 2010
The Shallow Water 2006 ocean acoustics experiment on the New Jersey continental shelf was designed in part to determine the frequency dependence of sound speed and attenuation for a sandy sediment in the 50-3000 Hz band.
Knobles, D. P.
core   +1 more source

Reflection-Aware Sound Source Localization

open access: yes, 2017
We present a novel, reflection-aware method for 3D sound localization in indoor environments. Unlike prior approaches, which are mainly based on continuous sound signals from a stationary source, our formulation is designed to localize the position ...
An, Inkyu   +3 more
core   +1 more source

Energy-Based Collaborative Source Localization Using Acoustic Microsensor Array

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
A novel sensor network source localization method based on acoustic energy measurements is presented. This method makes use of the characteristics that the acoustic energy decays inversely with respect to the square of distance from the source.
Li Dan, Hu Yu Hen
doaj   +1 more source

Effects of the pipe-joints on acoustic emission wave propagation velocity [PDF]

open access: yes, 2008
In jointed-pipes, a variety of different acoustic emission (AE) waves can be generated by way of mode conversion, wave reflection and wave transmission from a joint. This can lead to interference waves as resulting complicated signals propagate along the
Au, YHJ, Wichaidit, W
core  

IDENTIFICATION OF RATTLE NOISE SOURCES IN THE VEHICLE CABIN USING AN ACOUSTIC CAMERA [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport
Driving comfort in the car cabin depends on the prevailing acoustic climate. The occurrence of various types of intermittent noises is a common phenomenon observed by users of motor vehicles.
Jan WARCZEK
doaj   +1 more source

The accuracy of far-field noise obtained by the mathematical extrapolation of near-field noise data [PDF]

open access: yes
Results are described of an analytical study of the accuracy and limitations of a technique that permits the mathematical extrapolation of near-field noise data to far-field conditions. The effects of the following variables on predictive accuracy of the
Ahtye, W. F., Karel, S.
core   +1 more source

Numerical analysis of transient combustion response to acoustic oscillations in axisymmetric rocket motors [PDF]

open access: yes, 1998
A numerical analysis of unsteady motions in solid rocket motors with a nozzle has been conducted. The formulation treats the complete conservation equations for the gas phase and the one-dimensional equations in the radial direction for the condensed
Culick, F. E. C., Roh, T. S.
core   +1 more source

Current situation and new technology prospects of hidden fire source location detection of residual coal spontaneous combustion in goaf

open access: yesMeikuang Anquan
The problem of spontaneous combustion of coal left in the goaf poses a serious threat to coal mine safety, and the accurate positioning of its hidden ignition source is the key to effective governance.
Duo ZHANG   +5 more
doaj   +1 more source

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