METHOD FOR INCREASING THE PRECISION CHARACTERISTICS OF AN AUTONOMOUS STRAPDOWN VERTICAL GYROSCOPE WITH INTEGRAL CORRECTION AND APPARATUS FOR IMPLEMENTATION THEREOF Russian patent published in 2023 - IPC G01C23/00 

FIELD: gyroscopes.

SUBSTANCE: invention relates to the field of aviation instrumentation and can be used in autonomous strapdown vertical gyroscopes and AHRS built on "rough" angular velocity and linear acceleration sensors with a sensitivity limit above the speed of rotation of the Earth. Method for increasing the precision characteristics of an autonomous strapdown vertical gyroscope with integral correction includes the stages of measuring the angular velocities and linear accelerations, converting the increment of roll and pitch angles from a body-fixed coordinate system to an inertial coordinate system, forming a direction cosine matrix. Then, integrating and recalculating the increments of apparent velocities for the inertial coordinate system; calculating the linear velocities in the inertial coordinate system; calculating the digital platform control angular velocities and calculating the pitch and roll angles. When calculating linear velocities in the inertial coordinate system, damping of said velocities is added, and when calculating digital platform control angular velocities, static amplification thereof is added.

EFFECT: higher precision of piloting an aerial vehicle due to the reduced amount of errors in measuring pitch and roll angles, caused by errors in raw data sensors.

1 cl, 2 dwg