Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 13, 2007
Patent Application Number
11052732
Date Filed
February 4, 2005
Patent Primary Examiner
Patent abstract
Method and apparatus for extracting coherent information from in-phase (I) and quadrature (Q) signals. In a form, signals from an antenna array are mixed to form a plurality of I and Q signals that combined to form respective complex vectors. Each vector is adjusted in phase and magnitude to compensate for variations in field signal patterns, summed with other vectors, spatially and temporally filtered, and processed using spectral analysis algorithms to extract coherent spatial information. The coherent spatial information may be used to detect the presence, number and activity of insects within a structure in the near field of the antenna.
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