Craft guidance system

Details Craft guidance system Craft guidance system

1986-03-10

1987-06-09

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342387, 342396, G01S 124

Patent

active

046723838

ABSTRACT:
A craft guidance system 200 has signal transmission stations AB, CD, AC operable to provide three intersecting hyperbolic lattices 21, 20, 120. One transmission station pair AB provides a moving lattice 21 which travels at the same speed and in the direction of the craft 22 using the system. The other station pairs CD, AC provide fixed lattices 20, 120. Equipment (FIG. 5) carried by the craft 22 operates whereby, when translated by reference to the phase difference between the transmissions of each pair AB, CD, AC, the lattices 21, 20, 120 provide hyperbolic lines of position continuously in time at infinitely variable positions. The moving lattice 21 is caused to travel at the intended speed and in the direction of the craft 22. The fixed lattice 20 provides craft track guidance; and both fixed lattices together provide craft position fixes. The fixed lattice 20 and the moving lattice 21 together provide craft moving position guidance; the moving lattice 21 provides craft speed guidance.

REFERENCES:
patent: 3573829 (1971-04-01), Johnson

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