一种改进的空空导弹三维变结构导引律  

An Improved Three-Dimensional Variable Structure Guidance Law for Air-to-Air Missiles

作　　者：高小翔[1] 周德云[1] 周灿辉[1] 

机构地区：[1]西北工业大学,西安710129

出　　处：《电光与控制》2013年第6期12-15,28,共5页Electronics Optics & Control

基　　金：航空科学基金(20080553019)

摘　　要：空空导弹采用变结构导引律攻击大机动目标时存在视线角速率易发散和变结构参数项不易确定等缺点。针对上述问题,在变结构控制理论的基础上,提出一种基于变指数趋近律的参数自适应变结构三维导引律,利用多输入多输出RBF神经网络对变结构参数项进行在线调整。仿真结果表明,该导引律能有效削弱变结构控制的抖振,进一步提高导引精度,具有很强的自适应能力和鲁棒性,满足空空导弹战术指标要求。Aiming at problems existed in air-to-air missile attacking highly maneuvering target with variable structure guidance law, such as the divergence of line-of-sight angular rate and indetermination of variable structure＇s parameters, a new 3-dimensional guidance law was designed based on varying exponential reaching law, which could adjust the variable structure parameters on line by using muhi-input multi-output RBF neural network （ RBFNN ）. The simulation results show that the new guidance law can effectively reduce the buffeting and improve the guidance accuracy. It has strong adaptive capability and robustness, and can meet the tactical requirements for air-to-air missiles.

关 键 词：空空导弹 多输入多输出RBF神经网络 变结构导引律 三维导引 自适应调参 

分 类 号：V448[航空宇航科学与技术—飞行器设计]