Digital Controllers for VTOL Aircraft
- 1 January 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. AES-14 (1) , 54-63
- https://doi.org/10.1109/taes.1978.308578
Abstract
Using linear-optimal estimation and control techniques, digitaladaptive daptive control laws have been designed for a tandem-rocopteror heliopter which is equipped for fully automatic flight in terminal area operations. Two distinct discrete-time control laws are designed to interface with velocity-command and attitude-command guidance logic, and each incorporates proportional-integral compensation for nonzero-set-point regulation, as well as reduced-order Kalman filters for sensor blending and noise rejection. Adaptation to flight condition is achieved with a novel gain-scheduling method based on correlation and regression analysis. The linear-optimal design approach is found to be a valuable tool in the development of practical multivariable control laws for vehicles which evidence significant coupling and insufficient natural stability.Keywords
This publication has 4 references indexed in Scilit:
- On “type l” multivariable linear systemsAutomatica, 1973
- The role and use of the stochastic linear-quadratic-Gaussian problem in control system designIEEE Transactions on Automatic Control, 1971
- Optimal linear regulators: The discrete-time caseIEEE Transactions on Automatic Control, 1971
- Automatic Guidance Concept for VTOL AircraftJournal of Aircraft, 1971