Spread spectrum communication system

Details Spread spectrum communication system Spread spectrum communication system

1989-10-27

1992-02-18

Gregory, Bernarr E.

Pulse or digital communications

Repeaters

Testing

329304, 333154, 375 80, 375 83, 375 94, 375 96, 375115, H04L 2730

Patent

active

050900234

ABSTRACT:
The correlation between a PN code pattern of the synchronization preamble data of an incoming spread spectrum signal and a reference PN code pattern generated on the reception side is detected by using an SAW convolver. The gate length of the SAW convolver is shorter than the preamble data length. However, an apparatus which can obtain the true correlation output by calculating the logical multiplication of the correlation output from the SAW convolver and the validation pulse is constituted.

REFERENCES:
patent: 4017798 (1977-04-01), Gordy et al.
patent: 4214209 (1980-07-01), Baier et al.
patent: 4675839 (1987-06-01), Kerr
patent: 4691326 (1987-09-01), Tsuchiya

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