Method and apparatus for detecting a disturbance in a medium
An improved technique for acoustic sensing involves, in one embodiment, launching into a medium, a plurality of groups of pulse-modulated electromagnetic-waves. The frequency of electromagnetic waves in a pulse within a group differs from the frequency of the electromagnetic waves in another pulse w...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
22.10.2019
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Subjects | |
Online Access | Get full text |
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