Design and flight testing of a digital optimal control general aviation autopilot. (English) Zbl 0554.93048

Broussard, J. R.; Downing, D. R.; Bryant, W. H.

Automatica 21, 23-34 (1985).

This paper presents the designs of proportional-integral-filter (PIF) autopilots for a General Aviation (NAVION) aircraft. The PIF autopilots use modern control theory to determine heading select and altitude select and hold autopilot modes. The PIF control law uses typical General Aviation sensors for state feedback; command error integration for command tracking; digital complementary filtering and analog prefiltering for sensor noise suppression; a control filter for computation delay accommodation; and the incremental form to eliminate trim values in implementation.

MSC:

93C57	Sampled-data control/observation systems
93B50	Synthesis problems
93D15	Stabilization of systems by feedback
70Q05	Control of mechanical systems
93B40	Computational methods in systems theory (MSC2010)
93C55	Discrete-time control/observation systems

Keywords:

proportional-integral-filter; heading select; altitude select; state feedback; command tracking

Software:

ORACLS

References:

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