Method and apparatus for signal detection
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United States of America Patent
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Jan 19, 2016
Grant Date -
Mar 7, 2013
app pub date -
Sep 4, 2012
filing date -
Sep 5, 2011
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Abstract
A method for detecting signals using an adaptive transducer arrangement, the arrangement including a transducer array having a plurality of transducers, a beamformer, and an energy detector, the method comprising: determining weights to be applied by the beamformer to signals emitted from each transducer in order to maximize a performance metric; applying the determined weights to the signals emitted from each transducer; measuring the energy received at the energy detector; comparing the measured energy with a predetermined value and based on said comparison determining whether or not one or more signals are present.
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