基于非线性干扰观测器的超机动飞行轨迹线性化控制  

Nonlinear Disturbance Observer-Enhanced Trajectory Linearization Control for Super-Maneuverable Flight

作　　者：王芳[1] 钱承山[2] 

机构地区：[1]中国电子科技集团公司第28研究所,江苏南京210007 [2]南京信息工程大学信息与控制学院,江苏南京210044

出　　处：《兵工自动化》2010年第7期59-62,共4页Ordnance Industry Automation

摘　　要：针对非线性系统存在建模误差和外界干扰等不确定因素问题,提出一种基于非线性干扰观测器(Nonlinear Disturbance Observer,NDO)在线补偿的轨迹线性化控制(Trajectory Linearization Control,TLC)方法。设计非线性干扰观测器,对不确定因素进行估计,NDO的输出用以设计新的补偿控制律,与TLC方法相结合来消除不确定因素的影响。以赫布斯特机动过程为例进行飞行仿真,并与单纯采用TLC方法的控制性能进行对比。仿真表明,系统能较好地跟踪姿态角指令,有良好的鲁棒性。Considering the uncertainties, such as errors in modeling and external disturbances, existed in nonlinear systems, a nonlinear disturbance observer （NDO） is used to estimate the uncertainties, and then its output is integrated with the output of Trajectory Linearization Control （TLC）, as a new control law to cancel the unknown term. So, nonlinear systems will attain to excellent performance. Herbst maneuver is method, and for comparison, the herbst maneuver is also simulated the method is effective and has better robustness. simulated for an aircraft mathematics model using this using only TLC controller. Simulation＇results show that

关 键 词：轨迹线性化控制 非线性干扰观测器 超机动 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]