METHOD FOR CALIBRATING PRECISION ANGULAR VELOCITY SENSORS TAKING INTO ACCOUNT ANNUAL ANGULAR ORBITAL VELOCITY OF THE EARTH Russian patent published in 2023 - IPC G01C21/00 

FIELD: navigation.

SUBSTANCE: invention can be used in calibrating precision angular velocity sensors at the stage of initial preparation of an inertial navigation system. The method for calibrating precision angular velocity sensors (AVS) is based on determining the zero drift of the AVS from the projections of the Earth's angular velocity vector onto the AVS measuring axes, and according to which the calculated projections of the Earth's rotation vector around its own axis are subtracted onto the corresponding measuring axes, in which the calculated projections of the vector of the annual angular orbital speed of rotation of the Earth in the ecliptic plane on the date and time of calibration are additionally subtracted from the projections of the angular velocity vector of the Earth on the AVS measuring axes, taking into account the leap year, latitude and longitude of the place of calibration, the angle between the plane of the ecliptic orbit and the equatorial plane of the Earth, as well as its own the angular velocities of the Earth's rotation and portable angular velocities along the ecliptic orbit.

EFFECT: improved calibration accuracy.

1 cl, 4 dwg