Radio frequency coding system

Details Radio frequency coding system Radio frequency coding system

1952-04-04

1976-03-16

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 65R, G01S 956

Patent

active

039450066

ABSTRACT:
2. In combination, a radar locator system, a pulse generator operable to duce pulse transmissions comprising one or more time spaced pulses occurring in any of a plurality of fixed time positions to form a plurality of different pulse code patterns which vary from pulse transmission to pulse transmission, a receiving means for receiving each of said pulse transmissions, a coder circuit in said receiving means responsive to the number and time position of said pulses to generate a reply signal having a characteristic dependent upon the pattern of said pulse transmissions, means for synchronizing the operation of said radar locator system and said pulse generator, and means for correlating the reply signals generated in said coder circuit and the echo pulses received by said radar locator system.

REFERENCES:
patent: 2415359 (1947-02-01), Loughlin
patent: 2444426 (1948-07-01), Busignies
patent: 2515178 (1950-07-01), Barchok
patent: 2531412 (1950-11-01), Deloraine
patent: 2537102 (1951-01-01), Stokes
patent: 2568265 (1951-09-01), Alvarez
patent: 2592777 (1952-04-01), Williams
patent: 2595141 (1952-04-01), Herbst

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