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Online Identification of Frequency Response of Attitude Control System based on Eigensystem Realization Algorithm by Yue Peng; Jiarun Liu is a scholarly article available to read on EtoBox.

What is Online Identification of Frequency Response of Attitude Control System based on Eigensystem Realization Algorithm about?

In view of the problems that the existing attitude control system identification algorithms often rely on actively applying the excitation signal in the loop, which may lead to actuator damage, control quality degradation and long identification time, this paper studies an identification algorithm without actively applying the excitation signal -Eigensystem Realization Algorithm (ERA).The algorithm can be carried out under closed-loop conditions without affecting the stability and safety of flight test.Based on a simple state-space model, this paper analyzes the difference of the identification effect of the algorithm under different parameter settings, and applies the algorithm to the frequency response identification of the attitude control system of a vertical take-off and landing (VTOL) verification aircraft.The simulation results show that the identification results of the new algorithm have a certain reference value for the verification and evaluation of control system design results, and provide a new idea for the field of online identification of aircraft dynamic characteristics.

Author

Yue Peng; Jiarun Liu

Publisher

ACM

Published

2022

Language

EN