Moreover , aircraft actually generate several vortices ? off the tail flaps , control surfaces and other areas of air - pressure discontinuity , states alan j 此外，连续体动力学公司的总裁毕拉宁说，飞机其实会产生好几个涡流- -尾襟翼、操纵面与其他产生气压不连续的区域。
The main work of this thesis is fault diagnosis for flighter control surface . three diagnosis methods , rough neural networks , wavelet analysis and fractal geometry methods are emphasized , then these methods are validated by simulations 本文的主要工作是进行歼击机操纵面的故障诊断，重点研究粗糙神经网络方法、小波分析方法和分形几何方法三种故障诊断方法，并进行仿真验证。
First , the thesis summarizes the states of research about fault diagnosis for flighter control surface , points out the disadvantages . then , the way of this thesis is ascertained , that is , the thesis should be emphasized in the model - independent methods 首先，对歼击机操纵面故障诊断的研究现状进行了总结，指出了缺点和不足。然后确定了本文的研究方向? ?不依赖于解析模型的故障诊断方法的研究。
Based on the flight datum of a300 , the mathematical models and the normal control law of uav are built . separating the traditional flight control surfaces into several independent portions , we can reduce the influence of the control surface each and add redundance to the systems at the meanwhile 采用将传统操纵面分离成为各自独立的操纵面的方法，提高了操纵面的综合作用效果，因而使无人机具有了传统飞机所没有的操纵面控制冗余。
The approach maintains the simplicity of the original algorithm , and carry out perfect model following . the pseudo - inverse method is concerned with distributing the deflection commands of multiple control surfaces of the aircraft to generate required control responses when the number of independent control surfaces is greater than the number of required independent control responses 伪逆算法通过改变反馈增益来实现故障系统的控制律重构，当一个操纵面发生故障后，可改变控制律重新分配控制指令，利用其它操纵面来实现它的功能，近代先进飞机多采用此方法来提高飞机的容错能力。
