Method of aligning an axisymmetric vibrating sensor inertial navigation system and corresponding inertial navigation system

摘要

The method of aligning an inertial unit having an axially symmetrical vibrating sensor that generates vibration comprises the step of establishing the vibration in a position for which the sensor presents variation in drift error that is the smallest relative to variation in drift error for other positions of the vibration.

主权项

1. A method of aligning an inertial unit fitted to a carrier, the inertial unit having an axially symmetrical vibrating sensor that generates a vibration, wherein the method includes the step of exciting the sensor with a control signal that determines the position of the vibration for which the sensor presents drift error variation that is minimized relative to the drift en or variations for other positions of the vibration, and the step of defining an initial geographical orientation of the inertial unit, the method being performed while the carrier is immobile.