We describe an acoustic array project and testbed for use in undergraduate instruction and research. The testbed consists of eight high-quality acoustic microphones connected to a programmable data acquisition system controlled by a laptop. The system is portable, allowing for outdoor data collections. The system can be used for collecting data that is processed off-line and can also perform re...

Inversion of acoustic data for estimating bottom acoustic parameters has been the subject of a considerable number of studies. Usually, signals are received on vertical arrays of sensors and transmitted from sound sources being towed away from the array location in order to form a syntethic aperture array. That configuration is greatly dependent on the knowledge of the sourcereceiver distance w...

A compressive sensing joint sparse representation direction of arrival estimation (CSJSR-DoA) approach is proposed for wireless sensor array networks (WSAN). By exploiting the joint spatial and spectral correlations of acoustic sensor array data, the CSJSR-DoA approach provides reliable DoA estimation using randomly-sampled acoustic sensor data. Since random sampling is performed at remote sens...

We demonstrate that the tunable potential introduced by a surface acoustic wave on a homogeneous polariton condensate leads to fragmentation of the condensate into an array of wires which move with the acoustic velocity. Reduction of the spatial coherence of the condensate emission along the surface acoustic wave direction is attributed to the suppression of coupling between the spatially modul...

Advances in microelectronics, array processing, and wireless networking have motivated the analysis and design of low-cost integrated sensing, computing, and communicating nodes capable of performing various demanding collaborative space–time processing tasks. In this paper, we consider the problem of coherent acoustic sensor array processing and localization on distributed wireless sensor netw...

Phonetic convergence is defined as an increase in the similarity of acoustic-phonetic form between talkers. Previous research has demonstrated phonetic convergence both when a talker listens passively to speech and while talkers engage in social interaction. Much of this research has focused on a diverse array of acoustic-phonetic attributes, with fewer studies incorporating perceptual measures...

Yong Li, Xue Jiang, Bin Liang, Jian-chun Cheng, and Likun Zhang CNRS, Institut Jean Lamour, Vandœuvre-lès-Nancy F-54500, France Université de Lorraine, Institut Jean Lamour, Boulevard des Aiguillettes, BP: 70239, Vandœuvre-lès-Nancy 54506, France Key Laboratory of Modern Acoustics, MOE, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanji...

Tracking of helicopters or any airborne targets requires estimation of both azimuth and elevation angles of the target. In this paper, an algorithm for estimation of azimuth and elevation using acoustic array (array of microphones) will be presented. There are several super resolution algorithms for estimation of direction of arrival (DoA) angles, such as minimum variance distortionless respons...

The ANTARES Neutrino Telescope is a water Cherenkov detector composed of an array of approximately 900 photomultiplier tubes in 12 vertical strings, spread over an area of about 0.1 km with an instrumented height of about 350 metres. ANTARES, built in the Mediterranean Sea, is the biggest neutrino telescope operating in the northern hemisphere. Acoustic sensors (AMADEUS project) have been integ...