Synthetic demodulation of spread spectrum signals

Details Synthetic demodulation of spread spectrum signals Synthetic demodulation of spread spectrum signals

1990-02-05

1991-07-09

Gregory, Bernarr E.

Pulse or digital communications

Repeaters

Testing

375 80, 375 96, H04L 2730, H04L 2706

Patent

active

050311921

ABSTRACT:
This is a spread spectrum radio frequency (RF) communication system whose rpose is to "spread" the information bandwidth such that when it is de-spread any atmospheric interference (including jamming is spread rather than de-spread. A "low probability of exploitation" is obtained through the use of multiple modulations each of which creates a distinct spread spectrum symbol at the transmitter, and the reception of which requires a "match" condition at the receiver to determine the data bit state. The symbol sequence is known by the appropriate receivers and the collection of data bits forms a message.

REFERENCES:
patent: 4164628 (1979-08-01), Ward et al.
patent: 4320513 (1982-04-01), Lampert
patent: 4447907 (1984-05-01), Bjornholt et al.
patent: 4644523 (1987-02-01), Horwirz
patent: 4730340 (1988-03-01), Frazier, Jr.
patent: 4763357 (1988-08-01), Barr

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