BANK ANGLE CORRECTOR FOR REFINING AIRCRAFT TRAJECTORY Russian patent published in 2020 - IPC F41G7/00 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to navigation assistance devices for refining of aircraft trajectory, in particular, in flight-navigation equipment of aircrafts. Device comprises angular velocity sensor (AVS), linear acceleration sensor (LAS), strap down inertial navigation system (SDINS), a first threshold device, a unit for determining instantaneous bank, a unit for determining the rolling average estimate of bank and its root-mean-square deviation, a second threshold device, a first logic device, a second logic device connected in a certain manner. Output signal of device is corrected angle of bank of SDINS. This device makes it possible to specify current flight trajectory, to update current bank angle value, for this purpose check of angular velocity output relative to longitudinal axis (ω_x) for limitation of measurement range of AVS sensor, independent adjustment of the bank angle after eliminating aircraft rotation, finding a "platform" for determining bank and calculating the bank by the moving average method.

EFFECT: technical result is high accuracy of forming current trajectory of autonomous controlled aircraft by determining the angle of bank of controlled aircraft after its separation from carrier, using signals of its onboard inertial sensors, in case of aircraft rotation.

1 cl, 2 dwg