交联耦合对自旋导弹控制系统特性的影响分析  

Influence of Cross Coupling on Control System of Spinning Missiles

作　　者：贾宝[1] 薛林[2] 闫晓勇[1] 

机构地区：[1]北京电子工程总体研究所,北京100854 [2]中国航天科工防御技术研究院,北京100854

出　　处：《现代防御技术》2016年第1期59-66,共8页Modern Defence Technology

摘　　要：基于小扰动线性化的弹体运动模型,建立了自旋导弹的三回路自动驾驶仪控制模型,得到了复数形式的闭环传递函数。在此基础上,分析了闭环系统的交联特性,结果显示,三回路自动驾驶仪使自旋导弹实现了稳态解耦,且闭环稳态增益不受气动参数变化影响。利用复系数线性多项式稳定性判别方法,研究了自旋导弹的闭环稳定性,分析了交联项对三回路自动驾驶仪稳定裕度的影响情况,得到了系统的闭环稳定条件。The mathematical model of three-loop autopilot for spinning missile is established by small perturbation method. Closed-loop transfer function is obtained in the form of complex number. On the basis of the function, the coupling property of control system is studied. The result indicates that the spinning missiles realize static decoupling by using three-loop autopilot, and the closed loop gain is not influstability of spinning missiles and the effect of coupling terms on the stability margin of three-loop autopilot are analyzed. In the end, the stability condition of closed loop control system is obtained.

关 键 词：自旋导弹 三回路自动驾驶仪 通道耦合 静态解耦 闭环稳定性 稳定判据 

分 类 号：TJ765.1[兵器科学与技术—武器系统与运用工程]