Software based spread spectrum signal processing

Details Software based spread spectrum signal processing Software based spread spectrum signal processing

2006-03-17

2010-12-07

Tsang, Fan (Department: 2614)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Quadrature carriers

C370S206000, C370S343000, C375S142000, C375S150000

Reexamination Certificate

active

07848217

ABSTRACT:
A software correlator comprising: a partitioning module adapted to divide a number of the received data samples into a first number of data blocks; a first correlation module adapted to correlate each of the data blocks with a respective local code replica segment to produce a first number of intermediate accumulation results; an aggregation module adapted to combine a number of consecutive results of the intermediate accumulation results into a target number of aggregated accumulation results, the target number expresses a number of discrete carrier values in a carrier vector that represents a Doppler shift of the at least one spread spectrum source signal relative to a downconverting frequency for this signal; and a second correlation module adapted to correlate the aggregated accumulation results with the carrier vector to produce the decoded signal, which is compensated for the Doppler shift relative to the downconverting frequency.

REFERENCES:
patent: 2004/0071200 (2004-04-01), Betz et al.
patent: 2004/0141549 (2004-07-01), Abraham et al.
patent: WO2004036238 (2004-04-01), None

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