METHOD OF DETERMINING ANGLES OF SPATIAL ORIENTATION Russian patent published in 2020 - IPC G01C23/00 

FIELD: aviation.

SUBSTANCE: invention relates to the field of navigational instrument-making and can be used in aircraft control and control systems. For this purpose, deviation of the three-component magnetometric sensor (TMS) is determined and written off, including circular deviation, after gaining altitude by performing a circular flight, using the strapdown inertial course-vertical (SICV) adapted to external disturbances and TMS with the written-off deviation based on optimization of the adaptive angle correction coefficients, using the introduced dynamic and static pressure sensors to determine the air speed, with its further differentiation and filtration to obtain a signal proportional to linear longitudinal acceleration, and additional optimization of adaptive correction coefficients is used by performing tuning on a plurality of training sequences. Increase in accuracy of determination of true heading is achieved by writing off deviation in flight and constant adaptive correction of roll and pitch angles by signals of accelerometers, as well as based on optimization of filtration coefficients depending on turbulence and adjustment on multiple training sequences. At that, deviation cancellation can be performed periodically, in case there is no replacement of aircraft on-board and outboard equipment. As a result, it is possible to use sensors of angular velocities and linear accelerations of average and low accuracy, including micromechanical type.

EFFECT: technical result is broader functional capabilities and high accuracy of determining navigation parameters.

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