Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-06-01
1977-06-21
Tubbesing, T.H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 904
Patent
active
040315347
ABSTRACT:
A system for detecting the existence of a projectile within a penetration ne of a target and providing a score indication for each projectile penetrating that zone. The system utilizes a doppler signal generator, a doppler cycle detector and an intercept detector for indicating penetration. A voltage controlled oscillator in the target area provides signal information for transmission by FM telemetry. The unit for scoring the number of intercepts utilizes an FM telemetry receiver for demodulating the signal information. A hit indicator produces a score indication pulse in a manner which is highly resistant to background noise. A score indication device, controlled by the control pulse, counts the score indications and signifies intercepts by an electromechanical counter, audible signals and/or a light display.
REFERENCES:
patent: 3168735 (1965-02-01), Cartwright
patent: 3289204 (1966-11-01), Murray et al.
patent: 3611373 (1971-10-01), Cartwright
Kallmann George T.
Waddell Theodore P.
Cochran II William W.
Sciascia Richard S.
St.Amand Joseph M.
The United States of America as represented by the Secretary of
Tubbesing T.H.
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