AIRCRAFT LANDING APPROACH AUTOMATIC CONTROL Russian patent published in 2012 - IPC B64C13/16 

FIELD: transport.

SUBSTANCE: invention relates to aircraft landing approach ACS. Proposed method exploits ACS with logical filtration of glide-path beacon control signal. Control signal is subjected to linear filtration. If rate of variation of aforesaid signal exceeds tolerance this event is memorised. Filtered control signal of glide-path beacon is used to generate and memorise signal at previous sampling interval. Region of possible magnitudes of control signal is formed with due allowance for possible rate of its variation in time. In case time interval wherein glide-path beacon control signal is smaller than threshold value, then signal of magnitude corresponding to that memorised at previous sampling interval is taken to be said control signal, if said time interval exceeds threshold value then signal corresponding to current value make glide-path beacon control signal. Filtered control signal of glide-path beacon and signals of pitch angle and pitch angular speed are used in ACS computer to generate control signal to be fed to elevator drive for automatic control of aircraft landing approach.

EFFECT: higher accuracy of landing approach.

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