基于μ分析的导弹自动驾驶仪稳定裕度评估  

μ Analysis based Stability Margin Clearance of Missile Autopilot

作　　者：侯振乾[1] 梁晓庚[1] 杨军[2] 

机构地区：[1]西北工业大学自动化学院,西安710072 [2]西北工业大学航天学院,西安710072

出　　处：《计算机测量与控制》2012年第8期2177-2179,共3页Computer Measurement &Control

摘　　要：介绍了一种关于导弹自动驾驶仪稳定裕度评估的新方法;利用结构奇异值理论对存在不确定性参数的导弹自动驾驶仪性能进行分析,并确定"最坏情况"时不确定性参数的组合;首先,针对存在不确定性参数的导弹系统,建立线性分式变换(LFT)形式的模型;然后,将系统稳定裕度要求看作虚拟的非结构不确定性并引入模型;最后,使用结构奇异值理论对模型进行分析。分析证明自动驾驶仪满足性能要求,并且得到了最坏情况的不确定参数组合;结果表明这是一种比传统方法更加高效和准确的评估方法。A new method of stability margin clearance of missile autopilot is described. The structured singular value theory is used to analyze the autopilot performance of missile which has uncertainty parameters and determine the ＂worst case＂ combination of uncertain pa- rameters. First, a model of linear fractional transformation form is established for missile with uncertain parameters; then, the system sta- bility margin requirements are seen as a virtual non--structural uncertainty and introduced into the model; Finally, the structured singular value theory is used to analyze the model. The clearance results prove the performance requirements for the autopilot are satisfied, the ＂worst case＂ combination of uncertain parameters is also obtained. The results show it is a more efficient and accurate clearance method than traditional one.

关 键 词：稳定裕度评估 自动驾驶仪 结构奇异值 

分 类 号：TJ765.2[兵器科学与技术—武器系统与运用工程]