Poynting-vector based method for determining the bearing and location of electromagnetic sources
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United States of America Patent
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Oct 21, 2008
Grant Date -
Oct 19, 2006
app pub date -
Apr 13, 2006
filing date -
Apr 15, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is utilized to determine the bearing and/or location of sources, such as, alternating current (A.C.) generators and loads, power lines, transformers and/or radio-frequency (RF) transmitters, emitting electromagnetic-wave energy for which a Poynting-Vector can be defined. When both a source and field sensors (electric and magnetic) are static, a bearing to the electromagnetic source can be obtained. If a single set of electric (E) and magnetic (B) sensors are in motion, multiple measurements permit location of the source. The method can be extended to networks of sensors allowing determination of the location of both stationary and moving sources.
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