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Locating tweeks atmospherics source locations using WWLLN data
2013 IEEE International Conference on Space Science and Communication (IconSpace), 2013Tweek atmospherics are Extremely Low Frequency (ELF) and Very Low Frequency (VLF) radio waves produced by lightning discharge. For few decades, tweeks has been known to be useful in measuring the variations of the lower region of the ionosphere (D-region). However, due to the nature of lightning occurrences, it is difficult to determine the location of
S. N. Ibrahim +5 more
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Journal of Experimental Biology, 2009
The world is a perilous place for the endangered manatee. While the mammals are at risk from natural threats, human activity also poses a great danger to manatee numbers. Debborah Colbert, from the Association of Zoos and Aquariums, explains that many manatees die and are seriously injured ...
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The world is a perilous place for the endangered manatee. While the mammals are at risk from natural threats, human activity also poses a great danger to manatee numbers. Debborah Colbert, from the Association of Zoos and Aquariums, explains that many manatees die and are seriously injured ...
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Active source location and beamforming
The Journal of the Acoustical Society of America, 2000A fundamental problem in designing user interfaces that incorporate speech and vision is locating the user(s) and enhancing the quality of their speech. We present a novel algorithm for actively doing this. Two complementary coarse-to-fine strategies that divide both the space being searched and the received signal in the frequency domain are used to ...
Ramani Duraiswami +3 more
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Acoustic emission leak source location
The Journal of the Acoustical Society of America, 1992A method and apparatus for locating a leak which produces a continuous acoustic emission having background noise and spikes, comprises continuously monitoring the acoustic emissions using spaced apart detectors which produce signals having background noise and spikes corresponding to those of the continuous acoustic emissions.
John E. Coulter +2 more
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Locating the Source of Gastrointestinal Bleeding
Postgraduate Medicine, 1968Gastrointestinal bleeding can now be localized earlier and more accurately by an aggressive diagnostic approach using newer tools and technics. Among the causes of acute bleeding from the upper part of the gastrointestinal tract, chronic peptic ulcer disease is less common, and erosive esophagitis and gastritis are more common, than has been supposed.
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Multiple source location-recursive approach for coherent sources
Proceedings of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation, 2002In the paper, the multiple source location problem is considered. The coherency characteristics of the sources is analyzed. An new recursive method based on the coherent group classification is developed to provide high resolution source location estimations independent of the incident source coherency characteristics.
null Yue Yao, null Guoliang Zeng
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Simplified multiple source location for uncorrelated sources
Signal Processing, 1983Abstract This paper presents a simple computational scheme for locating multiple sources with a linear array of equally spaced antenna elements. The scheme is applicable when the sources are not correlated (and hence the covariance matrix of the received vector is Toeplitz) and the internal antenna noise variances are known a priori. The scheme has a
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Locating sources of Szegedy's quantum network
Physical Review ESource location in quantum networks is a critical area of research with profound implications for cutting-edge fields such as quantum state tomography, quantum computing, and quantum communication. In this study, we present groundbreaking research on the technique and theory of source location in Szegedy's quantum networks.
Hong-Jue Wang +4 more
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Neuromagnetism and Source Location
1993According to the electromagnetic theory, bioelectric currents within the brain produce electric and magnetic field phenomena. The measurement of the electric potentials at the surface of the head results in the EEG. The detection of the external magnetic fields yields the magnetoencephalogram (MEG). MEG recording is a contactless technique and does not
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