Rake receiver for spread spectrum signal demodulation
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United States of America Patent
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Aug 6, 2002
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app pub date -
Jul 7, 2000
filing date -
Aug 22, 1997
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Abstract
The architecture of the present invention is premised upon an algorithm involving integration of oblique correlators and RAKE filtering to null interference from other spread spectrum signals. The oblique correlator is, of course, based on the non-orthogonal projections that are optimum for nulling structured signals such as spread spectrum signals. RAKE filtering is used to rapidly steer the beam of the multi-antenna system and to mitigate the effects of multipath.
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