Spread spectrum communications system

Details Spread spectrum communications system Spread spectrum communications system

1991-11-13

1993-06-01

Swann, Tod

Pulse or digital communications

Repeaters

Testing

380 34, H04K 100

Patent

active

052166937

ABSTRACT:
A spread spectrum communications system in which one of a transmitter or a receiver uses a PN code sequence while another side uses a code sequence to which is used constant pattern signals comprising an arbitrary combination of three values of positive, negative and zero for each code of a same PN code sequence. A correlator performs cross correlation process of a code sequence to which the PN code sequence and the pattern signal have been used.

REFERENCES:
patent: 4199059 (1989-01-01), Grindahl et al.
patent: 4862478 (1989-08-01), McIntosh
patent: 5063560 (1991-11-01), Yerbury et al.
patent: 5063571 (1991-11-01), Vancraeynest
patent: 5081644 (1992-01-01), Uchida et al.
IEICE, pp. 33-37, Aug. 4-5, 1989, S. Fukuyama, et al., "The Merits and Applications of DS-SS Systems Using RZ-Codes".
IEICE, pp. 101-104, Aug. 4-5, 1989, H. Habuchi, et al., "A Code Division Multiplex Using Manchester Coded M-Sequence".
IEICE, pp. 35-38, Oct. 25-26, 1990, M. Sata, et al., "Parallel Spread-Spectrum Communication with Rejection Technique of Co-Channel Interference".
RCS, pp. 25-31, Apr. 25-31, 1988, A. Kazihara, et al., "A Simple Coherent PN Code Tracking System of Spread Spectrum Communications".

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