Method for navigating vehicles, particularly land vehicles

Details Method for navigating vehicles, particularly land vehicles Method for navigating vehicles, particularly land vehicles

1985-05-15

1987-07-14

Chin, Gary

Boots, shoes, and leggings

364424, 364571, 340988, G06F 1550

Patent

active

046807152

ABSTRACT:
A navigation method for the navigation of a vehicle employing direction and longitudinal movement sensors. Signals from the sensors are fed to a position computer which determines the vehicle position relative to a coordinate grid system. When the vehicle reaches a position of known coordinates the position values which are determined from the sensor signals are corrected with reference to the known coordinates, and a Kalman filter is provided which effects an error estimate and subsequently a correction value determination from the error estimate which results in a significant increase in accuracy of the displayed navigation data. The particular advantage of the method is the use of uncomplicated sensors which are able, in connection with the Kalman filter, to obtain highly accurate vehicle position data.

REFERENCES:
patent: 3702477 (1972-11-01), Brown
patent: 4114437 (1978-09-01), Krogmann
patent: 4144571 (1979-03-01), Webber
patent: 4161730 (1979-07-01), Anderson
patent: 4520445 (1985-05-01), Keearns
"Vehicle Navigation System FNA 4-15" Operation Manual, Teldix GmbH, Heidelberg, published prior to Oct. 8, 1975, pp. 5-34, and FIGS. I-V.

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