Author(s)

Atsushi Fujimori, Katsuma Mochizuki, Shinsuke Oh-hara

Department of Mechanical Engineering, University of Yamanashi, Kofu, Yamanashi, Japan.

This paper presents an identification of a continuous-time linear aircraft model while considering control surface actuators using the maximal length sequence signal. In the identification with the actuator, the input for identification is given by the command to the actuator or the output from the actuator. In the numerical simulation of longitudinal aircraft model identification, the identification performance is improved when the bandwidth ratio for the short-period mode and the bandwidth ratio between the actuator and the short-period mode are increased. Furthermore, a few input noises bring about an improvement in the identification performance. This may be effective in the case that the performance of the actuator is not sufficiently good in practical system identification.

Aircraft Models, Actuator, Maximum-Length Sequence, Bandwidth, Subspace Identification

Fujimori, A. , Mochizuki, K. and Oh-hara, S. (2024) System Identification of an Aircraft Model While Considering Control Surface Actuators. Advances in Aerospace Science and Technology, 9, 178-190. doi: 10.4236/aast.2024.94014.