Tracking and position determination system

Details Tracking and position determination system Tracking and position determination system

1975-04-09

1977-11-29

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343106D, 343112TC, 343113DE, G01S 140, G01S 354, G01S 504, G08G 500

Patent

active

040608093

ABSTRACT:
A method and apparatus for tracking and position determination includes generating carrier waves in transmitters; radiating said carrier waves; receiving said radiated carrier waves; imparting or simulating a motion, or motions, to radiators, reflectors or/and receiving antennas, within the locality of each, in such a way as to induce direction-dependent frequency modulation in each signal delivered to the receiving detectors; detecting said modulation on each received signal; and using measured parameters of said detected modulation to track the location of one or more of the said transmitters, reflectors or/and receivers and determine the corresponding position coordinates thereof. The actual or simulated motion of the radiators reflectors or antennas may have a uniform velocity along at least two straight, non-parallel lines.

REFERENCES:
patent: 2490050 (1949-12-01), Hansel
patent: 3094697 (1963-06-01), Kramar et al.
patent: 3133283 (1964-05-01), Ghose
patent: 3438036 (1969-04-01), Bennett
patent: 3781880 (1973-12-01), Jacobson
patent: 3798648 (1974-03-01), Lammers

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