Adaptive method to control and optimize aircraft performance

摘要

A measurement-based method to control and optimize the performance of an airborne vehicle. The stability and control of the vehicle is modified to induce a response in the airborne vehicle as reflected by a plurality of response signals. Excitations signals having multi-term sinusoidal waveforms are generated and applied to control signals controlling one or more control effectors. A time domain response of each of the state variables, response signals, and control signals arising from the application of the excitation inputs to the control signals is then measured. These time domain responses are then transformed into frequency domain models. The effectiveness and vehicle stability and control derivatives may then be identified from the frequency domain models of the state variables, response signals, and control signals. These effectiveness derivatives represent the contribution that each of the one or more selected effectors has on a particular performance index of the airborne vehicle and are then used to derive a control effector setting for each of the one or more selected effectors. The selected performance index may then be modified by adjusting the one or more selected effectors to its derived control effector setting. The stability and control derivatives identified may be used to improve the control laws associated with the airborne vehicle.