摘要
飞机气动参数辨识是利用飞机在飞行试验过程中测得的状态响应数据对飞机的气动参数进行辨识的技术。设计了纵向气动参数辨识的激励信号,建立了非线性辨识模型。基于极大似然法对飞行试验数据进行辨识研究,得到纵向气动参数。对比飞行试验和辨识结果仿真的时间历程,表明辨识结果准确。
The aerodynamic parameter identification is such a technique that using the flight data measured in flight test to estimate the aerodynamic parameters of airplane. For longitudinal aerodynamic parameter identification, the excitation signal is designed and the nonlinear identification model is established.A airplane＇s flight data is analyzed through maximum likelihood method to obtain the longitudinal aerodynamic parameters. The comparison between flight data and simulation of model identified, demonstrating that the identification result is accurate.
出处
《科技创新导报》
2013年第12期61-62,共2页
Science and Technology Innovation Herald
关键词
参数辨识
纵向气动参数
民用飞机
Parameter Identification Longitudinal Aerodynamic Civil Airplane
