The Influence Mechanism and Optimization of the Sensor Network on the MS/AE Source Location
Shock and Vibration, 2020 The sensor network layout is a key factor affecting the accuracy and stability of the microseismic/acoustic source (MS/AE) location. Based on the arrival-time-difference principle, the hyperbolic/hyperboloidal governing equations for the source location ...
Nan Li +3 more
doaj +1 more source
Acoustic source location in a jet-blown flap using a cross-correlation technique [PDF]
The acoustic source strength distribution in a turbulent flow field was measured for two far field microphones at 45 deg above and below the plane of the flap surface.
Becker, R. S., Maus, J. R.
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Modeling of Wave Propagation in Inhomogeneous Media [PDF]
, 2005 We present a methodology providing a new perspective on modeling and inversion of wave propagation satisfying time-reversal invariance and reciprocity in generally inhomogeneous media.
Curtis, Andrew +2 more
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Sound propagation over uneven ground and irregular topography [PDF]
The acoustic impedance of the surface coverings used in the laboratory experiments on sound diffraction by topographical ridges was determined. The model, which was developed, takes into account full wave effects and the possibility of surface waves and ...
Berthelot, Yves H. +6 more
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Trailing edge noise theory for rotating blades in uniform flow [PDF]
, 2013 This paper presents a new formulation for trailing edge noise radiation from rotating blades based on an analytical solution of the convective wave equation. It accounts for distributed loading and the effect of mean flow and spanwise wavenumber.
Agarwal, Anurag +2 more
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International Journal of Distributed Sensor Networks, 2013 To eliminate the location error of MS/AE (microseismic/acoustic emission) monitoring systems caused by the measurement deviations of the wave velocity, a MS/AE source location method using P-wave and S-wave arrivals for unknown velocity system (PSAFUVS ...
Longjun Dong, Xibing Li
doaj +1 more source
Position determination of acoustic source using a discrete probability density method supported by joint detection and time of arrival estimation [PDF]
Scientific Technical Review, 2017 The localization of various acoustic sources in a battlefield (such as weapon rounds, mortars, rockets, mines, improvised explosive devices, vehicle-borne improvised explosive devices and airborne vehicles) nowadays has significant history.
Pokrajac Ivan +4 more
doaj
An Amplitude-Based Estimation Method for International Space Station (ISS) Leak Detection and Localization Using Acoustic Sensor Networks [PDF]
The development of a robust and efficient leak detection and localization system within a space station environment presents a unique challenge. A plausible approach includes the implementation of an acoustic sensor network system that can successfully ...
Madaras, Eric I., Tian, Jialin
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Structured Sparsity Models for Multiparty Speech Recovery from Reverberant Recordings [PDF]
, 2012 We tackle the multi-party speech recovery problem through modeling the acoustic of the reverberant chambers. Our approach exploits structured sparsity models to perform room modeling and speech recovery.
Asaei, Afsaneh +3 more
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Magneto--Acoustic Energetics Study of the Seismically Active Flare of 15 February 2011
, 2012 Multi--wavelength studies of energetic solar flares with seismic emissions have revealed interesting common features between them. We studied the first GOES X--class flare of the 24th solar cycle, as detected by the Solar Dynamics Observatory (SDO).
A.-C. Donea +26 more
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