ASTRONOMICAL NAVIGATION SYSTEM Russian patent published in 2016 - IPC G01C21/02 

FIELD: data processing; aviation.

SUBSTANCE: invention relates to high-precision astroinertial navigation systems for use in manned and unmanned aerial vehicles. Astroinertial system installed at aircraft contains strap down inertial navigation system including accelerometers, gyros, receiver of satellite radio navigation system, navigation computer, self-contained power supply, astro-alignment device with computer to define angular parameters of sight of stars, navigation computer, unit of gradient rigidly coupled with strap down inertial navigation system for synchronous movement with aircraft and parallel to horizontal plane. Computer strap down inertial navigation system is made in form of series-connected program module for calculating matrix of gradients, program module speed calculation software coordinate calculation module and software module for correcting.

EFFECT: high accuracy of parameters of astroinertial system by using indirect gradient gravitational field intensity vector values of the Earth.

1 cl, 1 dwg