Direct sequence spread spectrum transmission process, with gener

Details Direct sequence spread spectrum transmission process, with gener Direct sequence spread spectrum transmission process, with gener

1997-11-07

1999-10-05

Ghebretinsae, Temesghen

Pulse or digital communications

Repeaters

Testing

H04B 1707

Patent

active

059635843

ABSTRACT:
Direct sequence spread spectrum transmission process that generates and optimizes sequences used by respective users of a communications system. A set of random sequences is produced and the sequences are optimized by a combinatorial operation in order to minimize residual noise. The random sequences belong to an M.sup.th set of roots unity, where respective of the N random sequences have given length L.

REFERENCES:
patent: 4862478 (1989-08-01), McIntosh
patent: 5206882 (1993-04-01), Schloemer
Kavehrad et al. "An Experiment With Direct Sequence Spread Spectrum Using DPSK Modulation" IEEE pp 3.5.1-3.5-5, 1987.

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