Spread-spectrum communication system

Details Spread-spectrum communication system Spread-spectrum communication system

1985-04-11

1987-09-01

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 96, H04L 2730

Patent

active

046913262

ABSTRACT:
A receiver in a spread-spectrum communication system is adapted to receive a signal which is modulated by a binary code modulated by a binary code or a data, and includes a matched filter which detects a correlation between the received signal and a reference signal modulated by a reference code produced by a code generator. When the received code supplied from the matched filter coincides with or is slightly displaced from the reference code, a pulse is produced from a correlation spike waveform with a relatively large amplitude to extract a desired pulse from the pulse and use it to initialize the reference code generator.

REFERENCES:
patent: 3706933 (1972-12-01), Bidell et al.
patent: 4203002 (1980-05-01), Nossen
patent: 4203071 (1980-05-01), Bowles et al.
patent: 4506239 (1985-03-01), Cho et al.
patent: 4538281 (1985-08-01), Rajan

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