Anti-jam communications system

Details Anti-jam communications system Anti-jam communications system

1968-03-11

1980-10-28

Birmiel, Howard A.

Telecommunications

Carrier wave repeater or relay system

Frequency or phase modulation

375 1, 179 15R, H04K 102, H04L 902

Patent

active

042311136

ABSTRACT:
Binary information signals which are to be transmitted are combined with a pseudo-random signal wave form such as a pseudo-random sequence of binary bits. Each binary message element, whether a binary "1" or a binary "0", alters successive portions of the pseudo-random binary sequence to thereby create a modified pseudo-random binary bit sequence, successive portions of which represent the binary information. The successive portions of the modified pseudo-random binary sequence are converted to an analog quantity which will be similarly varying in a pseudo-random manner.

REFERENCES:
patent: 3155908 (1964-11-01), Berman
patent: 3925612 (1975-12-01), Guanella

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