METHOD OF CONTROLLING A FREEFORM GYROVERTICAL WITH A RADIAL CORRECTION AND A FREEFORM GYROVERTICAL FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC G01C23/00 

FIELD: instrument engineering.

SUBSTANCE: invention relates to the field of aircraft instrumentation and can be used in freeform inertial systems, in particular in gyroverticals, attitude and heading reference systems and navigation systems, in measuring the angles of roll and pitch of a mobile object. Way to control the freeform gyrovertical with radial correction includes the measurement of angular velocities and linear accelerations, the transformation of the increment of the angles of roll and pitch from the coupled coordinate system to the inertial, errors in determination of said angles are calculated and corrected at linear accelerations in inertial coordinate system permissible in control of digital platform. In this case, calculation and compensation of errors in determining the angles of roll and pitch of the digital platform if the values of accelerations permissible for control are exceeded in the inertial coordinate system, they are performed with respect to the angular velocities determined in the inertial coordinate system during the start of the angular velocity sensors. For realization of the method in a freeform gyrovertical with radial correction, containing a block of angular velocity sensors, a block of linear acceleration sensors, a block of a digital platform, a block for calculating the angles of roll and pitch, a block for recalculating linear accelerations from a bound coordinate system to an inertial system, a digital platform control unit, in addition, the block for storing the angular velocities in the inertial coordinate system at the moment of starting the angular velocity sensors and the comparison unit for linear accelerations in the inertial coordinate system with linear acceleration permissible for controlling the digital platform in the inertial coordinate system such that the input of the angular velocity storage unit is connected to the output of the digital platform control unit, one input of the linear acceleration comparison block in the inertial coordinate system is connected to the output of the angular velocity storage unit in the inertial coordinate system, and the other with the output of said linear acceleration conversion unit, one output of said linear acceleration comparing unit is connected to the input of the digital platform control unit and the other to the input of the digital platform unit.

EFFECT: technical result is to increase the accuracy of determining the orientation angles.

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