Using linear-optimal estimation and control techniques, digital-adaptive control laws have been designed for a tandem-rotor helicopter 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 non-zero-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.
Digital controllers for VTOL aircraft
Conference on Decision and Control ; 1976 ; Clearwater, FL, US
1976-01-01
Miscellaneous
No indication
English
Digital controllers for VTOL aircraft
Tema Archive | 1978
|Digital Controllers for VTOL Aircraft
IEEE | 1978
|