Navigation point locating system

Details Navigation point locating system Navigation point locating system

1985-05-21

1987-06-16

Gruber, Felix D.

Boots, shoes, and leggings

364445, 364449, 342401, 342404, G01S 500, G06F 1550

Patent

active

046740511

ABSTRACT:
A system for determining the closest navigation point to an aircraft utilizes a sphere of influence principle wherein the earth is subdivided into a plurality of geographic areas, for example, one quarter degree squares of latitude and longitude. An identifier such as an index number of the closest navigation point to each square is stored in a look up table. Position information from the navigation system of the aircraft is used to address the look up table to retrieve the appropriate index number which is then used to address a second look up table that contains information defining the closest navigation point.

REFERENCES:
patent: 3947849 (1976-03-01), Fehlner et al.
patent: 3975731 (1976-08-01), Latham et al.
patent: 4134117 (1979-01-01), Robinson et al.
patent: 4212067 (1980-07-01), Henderson
patent: 4220994 (1980-09-01), Hendrickson
patent: 4583177 (1986-04-01), Meyer

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