Application of system identification techniques to aircraft gas turbine engines

摘要

A variety of system identification techniques are applied to the modelling of aircraft gas turbine dynamics. The motivation behind the study is to improve the efficiency and cost-effectiveness of system identification techniques currently used in the industry. Three system identification approaches are outlined in this paper. They are based upon : multisine testing and frequency-domain identifica- tion, time-varying models estimated using extended least squares with optimal smoothing, and multiobjective genetic programming to select model structure.