Method and arrangement for the autonomous determination of an in

Details Method and arrangement for the autonomous determination of an in Method and arrangement for the autonomous determination of an in

1988-02-19

1989-06-20

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Automatic guidance

F41G 700

Patent

active

048403288

ABSTRACT:
A method for the autonomous determination of an inertial positional reference on board a guided projectile through the ascertaining and evaluating of pressure values in the surroundings of the projectile during the movement thereof along a ballistic trajectory. Moreover, also disclosed is an arrangement for the autonomous determination of an inertial positional reference on board a guided projectile which is launched in a ballistic trajectory through measuring of the pressure in the surroundings about the projectile. In an aerodynamically stable condition of flight of the projectile, there is measured the dynamic atmospheric pressure of the surrounding medium onflowing relative to the projectile, and for the measured value of the atmospheric pressure as the characteristics curve parameter for the momentarily given elevator or stabilizer position of the momentarily absolute pitch position angle of the projectile, is read out from a field of characteristics curves, which as its content, provides from model observations or model investigations, the pitch position angle in dependence upon the projectile elevator position pursuant to the aerodynamic trim equations for the assumed condition of flight.

REFERENCES:
patent: 3332642 (1967-07-01), Halling
patent: 3695555 (1972-10-01), Chadwick
patent: 4198015 (1980-04-01), Yates et al.
patent: 4277038 (1981-07-01), Yates et al.
patent: 4606514 (1986-08-01), Sundermeyer
Brockhaus; Rudolf; "Flugregelung I-Das Flugzeng als Regelstrecke"; 1977; pp. 64-75.

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