Frequency hopping data communication system

Details Frequency hopping data communication system Frequency hopping data communication system

1984-10-19

1986-09-16

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 51, 375 58, 375 62, 375 89, H04L 2526, H04B 1500

Patent

active

046126520

ABSTRACT:
An improved frequency hopped data communication system with a random transmission of mark and space frequency over the transmission bandwidth to provide independent frequency hopping of the mark and space frequency is provided in the system which is particularly immune to repeater jamming. Only one frequency is transmitted at a time upon selection on a bit instant by a pseudo-noise code generator. The location of the mark and space frequency is randomly chosen, however, the location is known at the transmitter and the repeater by appropriate synchronization equipment.

REFERENCES:
patent: 4037159 (1977-07-01), Martin
patent: 4041391 (1977-08-01), Deerkoski
patent: 4142240 (1979-02-01), Ward et al.
patent: 4164628 (1979-08-01), Ward et al.
patent: 4231113 (1980-10-01), Blasbalg
patent: 4435821 (1984-03-01), Ito et al.

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