大气层内飞行器风速在线辨识方法  

A Method of On-line Wind Identification in the Field of Guided Aerocraft

作　　者：孙友[1] 杨广慧[1] 

机构地区：[1]北京航天自动控制研究所,北京100854

出　　处：《航天控制》2012年第6期3-6,共4页Aerospace Control

摘　　要：针对依靠空气动力机动飞行的飞行器飞行轨迹受平稳风场影响大的特性,提出了一种以过载控制辅助实现风速辨识的方法。对地面风场特性进行了分析,建立了简化的风场模型,利用铅垂方向风场分量近似为0的特性推导了风场辨识算法,然后阐述了风速辨识流程,给出过载控制实现方案、风场估算公式,最后通过数学仿真验证了该方案在线辨识风速的有效性,为实现制导控制系统实时弹道风修正提供了技术支撑。It is obvious that the trajectory of a guided aerocraft based on aerodynamic force can be affected by the wind. A method of real-time wind identification on-line combined with overload control is described in this paper. Firstly, the characteristics of wind are analyzed and a simplified wind field model is estab- lished. The formula is deduced in detail based on the characteristics of the wind which is nearly zero in the vertical direction. Then the identification process and control system are presented. Finally, the method is proved that it is reasonable and efficient according to the computer simulation results. It is useful for the wind correction in the trajectory.

关 键 词：过载控制 风场 辨识 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]