AUTOMATIC LANDING AND GUIDING DEVICE FOR PILOTLESS AIRCRAFT

Japanese Patent JPH01244997

A

PURPOSE:To facilitate approach guidance and landing by calculating a slippage from a standard glide path according to a tracking radar, and measuring an attitude angle or the like of an airframe by an airframe sensor to control the slippage of the airframe to be automatically zero. CONSTITUTION:A radar 1 measures the distance R from a pilotless aircraft, and a measured value becomes a true value through a tracking filter 2 to calculate slippage in position from a standard glide path, considering geographic conditions of a radar site and a landing strip. The value is coordinate- transformed onto a body axis according to information of an airframe sensor 4 for measuring a attitude angle of the airframe side to be input as the amount of slippage from the glide path to an autopilot system 6. The output is connected to a flight control system 8 for form a closed loop, whereby the slippage is controlled to be zero. Further, according to information on altitude, speed and grounding of the airframe sensor 4 in an approach, operation 7 for a flap, a leg and steering is scheduled in sequence to be input to the system 6.

SUMIDA JUNICHIRO

JP6979988A

September 29, 1989

March 25, 1988

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MITSUBISHI HEAVY IND LTD

B64C13/20; B64F1/36; (IPC1-7): B64C13/20; B64F1/36

Takehiko Suzue (2 outside)

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