考虑非理想噪声干扰的直升机飞行动力学模型辨识方法

利用MATLAB/SIMULINK平台搭建了直升机仿真实验系统，并以UH-60直升机为对象实现了考虑非理想噪声干扰的仿真飞行实验。建立了非理想噪声数学模型并基于增广最小二乘法设计了一套同时考虑模型参数和噪声参数的综合辨识算法，在此基础上，利用仿真实验数据实现了UH-60直升机纵向飞行动力学模型的辨识与验证。最后，通过与普通最小二乘法的对比验证了本文方法的优越性。

Helicopter Flight Dynamics Model Identification Method with Non-ideal Noise

A simulation system for helicopters is established in MATLAB/SIMULINK platform, and the flight simulation test of a UH-60 helicopter considering the non-ideal noise is implemented. A mathematical model of the non-ideal noise is built, and a comprehensive identification method is designed based on the recursive extended least squares which can identify the model parameters and noise parameters simultaneously. The identification and verification of the longitudinal flight dynamics model of a UH-60 helicopter are realized by using the simulation test data. Finally, the proposed method is compared with the least square method. Results prove the superiority of the method.