Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 27, 2007
Patent Application Number
11018985
Date Filed
December 21, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
An apparatus for estimating direction of arrival of signal is provided that has excellent performance in terms of angular resolution and the number of signals that can be identified. In an array sensor comprising a plurality of sensor elements, the two outermost sensor elements are alternately selected by a switch for use as a transmitting sensor, and the other sensor elements are selected in time division fashion as receiving sensors. With this arrangement, the effective aperture is increased to about twice the physical aperture, to improve angular resolution in a direction-of-arrival estimator.
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