INTEGRATED ORIENTATION AND NAVIGATION SYSTEM FOR OBJECTS WITH FAST ROTATION ABOUT LONGITUDINAL AXIS Russian patent published in 2015 - IPC G01C21/24 

FIELD: radio engineering, communication.

SUBSTANCE: three receiving antennas of satellite navigation systems (SNS) with one specialised receiver having three inputs, each of which has one input for antenna connection are installed on the object; with that, the reference antenna along with a gimbal-free inertia measurement module (GIMM) on micromechanical sensors (MMS) is installed in the front part of the object along the rotation axis, and two other with maximum possible distance along longitudinal axis from the reference antenna are located in a circumferential direction with 180° displacement in transverse plane. Difference phase SNS measurements of the rotating object are used for evaluation of GIMM errors both for a roll angle and heading and pitch angles, as well as for evaluation of errors of scale coefficients of gyroscopes and accelerometers, including those installed along longitudinal axis of the object, about which fast rotation is performed.

EFFECT: improving accuracy and interference immunity.

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