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机构地区:[1]西北工业大学自动化学院,陕西西安710129
出 处:《计算机仿真》2013年第5期86-89,共4页Computer Simulation
基 金:2011年西北工业大学基础研究基金(JC20110239)
摘 要:采用固体火箭冲压发动机的中远程空空导弹因非轴对称的气动外形,通常采用BTT控制方式。当导弹需要很大的横向机动时,BTT控制往往响应速度较慢。为了弥补末制导段BTT控制的不足,需要导弹在中制导段实时跟踪目标的横向位移,从而实现导弹末制导在铅垂面内俯冲攻击。为此,结合数据链通讯技术,提出了一种简单而又实用的导弹平飞巡航段中制导律。首先提出了中制导过载指令由多个相同周期的方波组成,进而通过求解积分方程,得到了方波指令幅值与指令周期、需用横向位移之间的关系式,利用平面几何算法推导出需用横向位移的表达式,并分析确定了指令周期的大小。仿真结果表明,设计的平飞段中制导律能够使导弹在进入末制导时,满足铅垂面俯冲攻击的条件,具有一定的工程应用参考价值。In order to realize the attack on vertical plane of mid-long range air-to-air missile which uses the flow ducted rockets, and make up the deficiency of the slow response speed of BTT control, a simple and practical mid- course guidance law in cruising stage was proposed, combined with the data chaining communication technology. Firstly, the form of overload command was constituted by several square waves with the same cycle, and then the ex- pression of the square wave amplitude with two parameters, the cycle and the lateral displacement necessarily, was acquired by calculating the integral equation. The expression of the lateral displacement necessarily was derived based on the plane geometry algorithm and the cycle of square wave was designed by analyzing the cycle of the data link. The simulation results show that the midcourse guidance law is able to make the missile meet the requirements of the attack on vertical plane in terminal guidance stage, and has reference value for engineering applications.
分 类 号:TJ765.3[兵器科学与技术—武器系统与运用工程]
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