Method and apparatus for robust acquisition of spread...

Details Method and apparatus for robust acquisition of spread... Method and apparatus for robust acquisition of spread...

2007-11-06

2007-11-06

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S152000

Reexamination Certificate

active

10227836

ABSTRACT:
A Direct Sequence Spread Spectrum receiver is described in which a complex spread spectrum signal is cross correlated by four digitally matched filters. The filters and subsequent multipliers correlate the in-phase and quadrature components as well as the current and previous symbols. The result is a more robust signal acquisition at very low signal to noise ratios.

REFERENCES:
patent: 5311544 (1994-05-01), Park et al.
patent: 5383220 (1995-01-01), Murai
patent: 5548613 (1996-08-01), Kaku et al.
patent: 5732111 (1998-03-01), Walley
patent: 5793796 (1998-08-01), Hulbert et al.
patent: 5848096 (1998-12-01), Shou et al.
patent: 6385232 (2002-05-01), Terashima
patent: 7075948 (2006-07-01), Makarov

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