Ground speed radar

In aviation, a ground speed radar is a speed sensor consisting of a radar installed onboard of an aircraft. It is used to provide a non-mechanical way of measuring the speed in relation to the surface of the Earth. The system fires a radar beam towards the ground and measures the Doppler shift of the returning beam. This information is then sent to the engine control unit which calculates the forward speed.

References

  1. ↑ TGSS Instruction Book Parker Electronic Controls

See also