Perspective navigation system employing the inner comparisons of

Details Perspective navigation system employing the inner comparisons of Perspective navigation system employing the inner comparisons of

1974-05-21

1976-04-20

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343102, 343112R, 23515022, G01S 116

Patent

active

039523080

ABSTRACT:
A perspective display of a runway is obtained on an aircraft by sequentially transmitting signals from selected marker positions about the runway. A plurality of sensors are positioned on the aircraft with a first sensor being compared to a reference frequency and the other sensors being compared each with the first sensor. The comparisons are made measuring the accumulated phase difference during a given time with these phase differences being equivalent to distances which are then fed to a computer and displayed as a perspective view.

REFERENCES:
patent: 2226860 (1940-12-01), Greig
patent: 2463095 (1949-03-01), Wight et al.
patent: 3237195 (1966-02-01), Schiffman
patent: 3503071 (1970-03-01), Earp

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