METHOD OF ASSISTANCE IN NAVIGATION FOR AIRCRAFT TRAJECTORY DETERMINATION Russian patent published in 2018 - IPC G05D1/00 

FIELD: navigation.

SUBSTANCE: method of navigational aid for refining the trajectory of an aircraft consists in refining the angles of the space position of the aircraft after separating it from the carrier in order to exclude the deviation of the controlled autonomous aircraft from a given trajectory. Method includes the initial exhibition of the BINS platformless inertial navigation system, the calculation of the angles of spatial orientation, velocities, the coordinates of the aircraft and the formation of the current flight trajectory, provides a refinement of the current roll angle, for which the angular velocity output is checked relative to the longitudinal axis (ω_x) for limiting the measurement limits of the DUS spin-rate meter, autonomous refinement of the roll angle after eliminating the rotation of the aircraft, finding a "platform" for determining the roll and calculating the roll by the moving average method, under the specific conditions specified.

EFFECT: refinement of the trajectory of an autonomous controllable aircraft by determining its roll angle after separation from the carrier, using the signals of its own onboard inertial sensors; method makes it possible to increase the accuracy of the formation of the current trajectory of the aircraft without complicating the construction and increasing labor costs.

1 cl, 1 dwg