Results 271 to 280 of about 786,196 (308)

Object localization in cluttered acoustical environments

Biological Cybernetics, 2008
In nature, sounds from objects of interest arrive at the ears accompanied by sound waves from other actively emitting objects and by reflections off of nearby surfaces. Despite the fact that all of these waveforms sum at the eardrums, humans with normal hearing effortlessly segregate one sound source from another.
Takahashi, T. T., Keller, C. H., Nelson, B. S., Spitzer, M. W., Bala, A. D. S., Whitchurch, E. A.   +5 more
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Acoustic talker localization

The Journal of the Acoustical Society of America, 2008
An apparatus for locating a talker, comprising a microphone array for receiving multiple audio signals, wherein the microphone array is characterized by a predetermined beampattern, a spectral conditioner for filtering the audio signals to optimize the beampattern for talker localization, a localization estimator for calculating a localization estimate
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Nonlinear wave localization in an acoustic metamaterial

Communications in Nonlinear Science and Numerical Simulation, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Energy Based Acoustic Source Localization

2003
A novel source localization approach using acoustic energy measurements from the individual sensors in the sensor field is presented. This new approach is based on the acoustic energy decay model that acoustic energy decays inverse of distance square under the conditions that the sound propagates in the free and homogenous space and the targets are pre-
Xiaohong Sheng, Yu Hen Hu
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Acoustic source localization in heterogeneous media

Ultrasonics, 2019
Acoustic source localization (ASL) or predicting the location of the acoustic source in a structure by analyzing the recorded signals at the receivers is of considerable interest for various applications. Recent research advances on this topic have been limited to homogeneous media.
Shenxin, Yin, Zhiwen, Cui, Jia, Fu, Tribikram, Kundu   +3 more
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Towards accurate acoustic localization on a smartphone

2013 Proceedings IEEE INFOCOM, 2013
Since our daily activities are dominantly indoor, as smart phones emerge as the most popular personal computing companions, major IT companies recently launched aggressive investment on mobile indoor location services and positioning systems, e.g., on iOS or Android mobile devices. However, one major hurdle has not been conquered yet: smart phone-based
Kaikai Liu, Xinxin Liu 0006, Lulu Xie, Xiaolin Li 0001   +3 more
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QoI for passive acoustic gunfire localization

2008 5th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, 2008
A network of acoustic arrays can localize a shooter. Each array can determine the direction of arrival (DOA) of the muzzle blast. Some arrays can also see the shockwave generated by the bullet as it travels at supersonic speeds. These arrays can also estimate the range to the shooter as a nonlinear function of the DOA and time difference of arrival ...
Lance M. Kaplan, Thyagaraju R. Damarla, Tien Pham   +2 more
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Redundance of Acoustic Localization

1984
Acoustic localization of sound waves in nature is possible in that different incoming signals are received by two ears and then processed. The intensity, phases, and differences in tone allow the radial distance, angle in the horizontal plane, the radial velocity and the horizontal angular velocity to be determined.
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The acoustical impact of local railway lines

The Journal of the Acoustical Society of America, 1998
Local railway lines serve a regional traffic. They have few users since the service offered presents insufficient quality standards. These lines could have more users and they could become metropolitan connections by adopting new vehicles which are faster and more modern.
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Efficient sensor coverage for acoustic localization

2007 46th IEEE Conference on Decision and Control, 2007
In this paper we consider a network of mobile agents carrying a simple sensor, able to measure the time an impulsive signal propagating isotropically from an unknown point source is detected, with a probability depending on the distance between the signal source and the sensor.
Milan Mandic, Emilio Frazzoli
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