Method of the Autonomous Initial Alignment of Strapdown Inertial Navigation Systems with Preliminary Autocalibration of Inertical Sensors for Unmanned Aerial Vehicles

The method of autonomous initial alignment of strapdown inertial navigation systems with the preliminary auto-calibration of inertial sensors of primary information (angular velocity sensors and accelerometers) is proposed by providing a series of fixed rotations of the sensor block around the vertical and horizontal axes with the help of a special rotary device. The significant advantage of this method is established in the accuracy of the exhibition before the known two-vector method. The application of the proposed method for the SINS initial alignment in the control systems of unmanned aerial vehicles has a good prospect.