RF Interferometer/Doppler target location system

Details RF Interferometer/Doppler target location system RF Interferometer/Doppler target location system

1983-04-27

1985-04-02

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343424, 343445, G01S 502

Patent

active

045090521

ABSTRACT:
A radio frequency interferometer/Doppler target location system comprising in one embodiment a wave source on a target vehicle which is tracked by a radio frequency interferometer located at a known situs. The radio frequency interferometer generates signals representing the azimuth angle, elevational angle and Doppler shift of the source. The Doppler shift is a direct measurement of the velocity of the target vehicle in wavelengths per second and therefore if the Doppler cycles are counted from the time the target vehicle is launched, its range can be determined at any desired time. The azimuth angle signal, elevation angle signal and the Doppler shift signal are then transmitted to a processor where the information is converted into any desired format to indicate the position of the tracked vehicle.

REFERENCES:
patent: 4136342 (1979-06-01), Alcock et al.
patent: 4321601 (1982-03-01), Richman
patent: 4387376 (1983-06-01), Sherrill et al.

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