Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Reexamination Certificate
2011-07-05
2011-07-05
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
Reexamination Certificate
active
07973715
ABSTRACT:
A system to determine a direction of arrival of each of a plurality of constituent signals of a superimposed wave includes a tripole radio antenna, a sampling unit, a frequency determining unit, an amplitude and phase determining unit, and a direction determining unit. The sampling unit is configured to periodically sample an output of the tripole radio antenna to generate at least two samples. The frequency determining unit is configured to determine frequencies for each dimension of the constituent signals by performing a unitary matrix pencil method on the at least two samples. The amplitude and phase determining unit is configured to determine x, y, z amplitudes and x, y, z phases for each constituent signal using the determined frequencies. The direction determining unit is configured to determine a direction of arrival for each of the constituent signals from the determined frequencies, amplitudes, and phases.
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Biem Alain
Daldorff Lars Kristen Selberg
Turaga Deepak Srinivas
Verscheure Olivier
F Chau & Associates, LLC
International Business Machines - Corporation
McGue Frank
Stock William
Tarcza Thomas H
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