Patent ID: 9027888
Filing Date: 2015-05-12
Classification: G01C

Abstract:
1. A method for use in determination of the orientation of an aerospace platform with respect to a roll rotation axis thereof, the method comprising: a. providing a predetermined-dynamic state movement of said aerospace platform with respect to an external reference frame, said predetermined-dynamic state movement being characterized in that a direction of lateral rotation rate of the platform within a lateral plane substantially orthogonal to the roll rotation axis, and/or of any time derivative of the lateral rotation rate, is substantially perpendicular to a reference direction within said external reference frame, b. while the aerospace platform is in said predetermined-dynamic state movement, measuring said direction of the lateral rotation rate and generating measured data indicative thereof, c. analyzing Said measured data indicative of the direction of the lateral rotation rate being substantially perpendicular to said reference direction, and determining an orientation angle of said aerospace platform with respect to said roll rotation axis.