Methods, systems, and computer program products for parallel correlation and applications thereof
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United States of America Patent
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Aug 2, 2011
Grant Date -
Nov 27, 2008
app pub date -
Jan 24, 2008
filing date -
Nov 14, 2000
priority date (Note) -
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Abstract
A fast correlator transform (FCT) algorithm and methods and systems for implementing same, correlate an encoded data word (X.sub.0-X.sub.M-1) with encoding coefficients (C.sub.0-C.sub.M-1), wherein each of (X.sub.0-X.sub.M-1) is represented by one or more bits and each said coefficient is represented by one or more bits, wherein each coefficient has k possible states, and wherein M is greater than 1. Substantially the same hardware can be utilized for processing in-phase and quadrature phase components of the data word (X.sub.0-X.sub.M-1). The coefficients (C.sub.0-C.sub.M-1) can represent real numbers and/or complex numbers. The coefficients (C.sub.0-C.sub.M-1) can be represented with a single bit or with multiple bits (e.g., magnitude). The coefficients (C.sub.0-C.sub.M-1) represent, for example, a cyclic code keying ('CCK') code set substantially in accordance with IEEE 802.11 WLAN standard.
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