AIRCRAFT NAVIGATION AND PILOTAGE SYSTEM Russian patent published in 2019 - IPC G01C23/00 

FIELD: aviation.

SUBSTANCE: invention relates to the field of navigational instrument-making and can be used in flight-navigation systems of aircrafts. For this purpose, digital flight-navigation system of transport aircraft includes equipment of current flight-navigation parameters (IS-1, IS-2, SHS, RS), a channel switching unit (CSU), a digital-to-analogue converter (DAC), a command execution unit (CEU), a radio communication system with a receiver-transmitter (RT) of communication with a control panel at the initial route point (IRP) and a control panel at the final route point (FRP), route program unit, takeoff-landing unit (TLU), as well as first and second automatic navigators (AN). First AN is made as part of the first on-board digital computer (OBDC-1), the first inertial system (IS-1), the second AN is made as part of the second on-board digital computer (OBDC-2), the second inertial system (IS-2). Technical result is provision of unmanned control of transport aircraft by calculated preset course, higher accuracy and reliability of operation of flight-navigation system, higher safety of piloting of aircraft is achieved due to additional introduction of trajectory correction channel, consisting of trajectory correction unit (TCU), satellite navigation system receiver (SNSR), receiver of range-finding system (RFS), which operates from three and more terrestrial radio-frequency-dimensional systems, at that outputs of SNSR and RFS receivers are connected each to its input of TCU, outputs of OBDC-1 and OBDC-2 are connected each other to other inputs of TCU; TCU output is connected to one input of OBDC-1 and to one input of OBDC-2.

EFFECT: technical result is improved reliability.

1 cl, 4 dwg