Method for navigating vehicles, particularly land vehicles

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

G - Physics

01

C

354/18

G01C 21/12 (2006.01) G01C 21/00 (2006.01) G01C 21/28 (2006.01)

Patent

CA 1234216

ABSTRACT OF THE DISCLOSURE 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 coor- dinate 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 connec- tion with the Kalman filter, to obtain highly accurate vehicle position data.

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