一种改进的组合末制导律研究  

A Study on Modified Combined Terminal Guidance Law

作　　者：王洪强[1,2] 邵晓巍[1] 周刚[2] 段登平[1] 

机构地区：[1]上海交通大学,上海200240 [2]西北核技术研究所,陕西西安710024

出　　处：《计算机技术与发展》2011年第12期239-242,共4页Computer Technology and Development

基　　金：国防科研项目(21010901)

摘　　要：在分析经典比例导引律基础上,利用有限获得的制导信息,通过非线性估计器来估算视线角加速度,提出一种由比例项、角加速度项和前置角项组成的改进的组合末制导律。它具有纯比例导引结构简单、易于实现的优点,同时能够克服其攻击机动目标能力较差的缺点,提高了系统的可观性。经过大量数字仿真研究表明,应用这种改进的组合末制导律,导弹的最大及最小过载均小于常规比例导引,同时脱靶量及命中时间也有明显降低,有效地提高了导弹的制导精度。Based on the detailed analysis of the classical proportional navigation （ PN）, using limited guidance information, and estimating the view angular acceleration through a nonlinear estimator, a modified combined navigation guidance law is proposed which contains proportionai navigation, angular acceleration and fixed lead navigation. The advantage of this guidance lies in its ease implementation,intercepting maneuvering targets and good observability. Compared with traditional proportional navigation, the simulation demonstrates that the missile overload acceleration and miss-distance is lower,and the guidance character is enhanced.

关 键 词：组合末制导律 可观性 过载 脱靶量 

分 类 号：V249[航空宇航科学与技术—飞行器设计]