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。设计了横航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,得到横航向气动参数。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。 Aircraft aerodynamic parameter identification is the technology that uses the state response data measured by the aircraft during the flight test to identify the aerodynamic parameters of the aircraft. The excitation signals for the identification of aerodynamic parameters in the transverse direction are designed and a nonlinear identification model is established. Based on the maximum likelihood method, the flight test data are identified and studied, and the lateral aerodynamic parameters are obtained. Contrasting the time history of the simulation of flight test and identification results shows that the identification result is accurate.