Measuring and testing – Navigation – Take-off and landing monitors
Patent
1987-10-13
1990-05-15
Woodiel, Donald O.
Measuring and testing
Navigation
Take-off and landing monitors
340990, 364449, G01C 2100
Patent
active
049246992
ABSTRACT:
A method position measurement in which position about satellite orbits and information about time are received from satellites to determine a position of a point. The method includes a step to calculate a direction in which an error occurs based on positional information of a satellite and a step to determine the position of the point by use of road map information in the direction of the error.
REFERENCES:
patent: 4677450 (1987-06-01), Ito et al.
patent: 4677561 (1987-06-01), Akama et al.
patent: 4677562 (1987-06-01), Uota et al.
patent: 4677563 (1987-06-01), Itoh et al.
Kurihara Nobuo
Kuroda Hiroshi
Sakamoto Shin'ichi
Hitachi , Ltd.
Woodiel Donald O.
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