变速导弹有界控制非线性微分对策制导律  

Nonlinear bounded-control differential game guidance law for variablespeed missiles

作　　者：花文华[1] 陈兴林[1] 

机构地区：[1]哈尔滨工业大学航天学院,哈尔滨150001

出　　处：《控制与决策》2011年第12期1886-1890,共5页Control and Decision

基　　金：黑龙江省科技攻关计划项目(GZ06A104)

摘　　要：传统制导律多基于常速运动假设,与实际情形并不一致,往往无法提供满意的性能.对此,基于微分对策理论,提出一种适用于变速拦截情形的有界控制非线性制导律.将对策双方的速度变化直接考虑到非线性相对运动关系中,并通过适当选取的状态变量进行线性化,从而设计制导律,同司时考虑可执行性,并将其转化为原系统非线性状态变量的表达形式.仿真结果表明,该制导律可实现目标的有效拦截,对拦截导弹机动性能要求不高且便于执行.Based on constant-speed assumption of interception missile and target, the traditional guidance laws can not provide satisfactory homing performance beause of the time-varying of flight speeds and maximum maneuverabilities in the actual scenarios. Therefore, a nonlinear bounded-control differential game guidance law in variable-speed interception scenario is presented based on differential game theory. The two-sided speed-variations are considered as an integral part of the engagement model, and the original system is linearized by means of proper choiced states for guidance law derivation. For the implementation, it is expressed in terms of the original nonlinear system state variables by transformation. The simulation results show that this guidance law is easy to implement, and can realize the interception of target effectively and requires low maneuverability.

关 键 词：末制导律 微分对策 变速导弹 可执行性 目标拦截 

分 类 号：V448.133[航空宇航科学与技术—飞行器设计]