基于伴随法的比例导引制导精度研究  

The Study on Proportional Navigation Based on the Method of Adjoint

作　　者：王磊[1] 夏群利[1] 孟秀云[1] 祁载康[1] 王辉[1] 

机构地区：[1]北京理工大学宇航学院,北京100081

出　　处：《弹箭与制导学报》2012年第4期64-68,共5页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：根据初始瞄准误差、导引头角噪声、目标闪烁的特点,分别建立对应的比例导引制导模型,广泛采用伴随法,得到其伴随模型,并利用无量纲归一化方法,得到无量纲脱靶量与制导系统各参数的关系,仿真结果表明制导系统的脱靶量与有效导航比、系统阻尼、带宽与脱靶量密切相关,低阻尼、低带宽对制导系统的脱靶量有不利的影响;由角噪声、目标闪烁引起的脱靶量并不随末导时间的延长而减小趋于零,而是趋于稳定的常值。The PN guidance model was established with the three error sources, heading error, angular noise and glint effect. Base on the method of adjoint and non-dimensional method, the adjoint model of the PN-guidanee was obtained and the expression of non-dimenslonal miss distance was deduced. It is concluded that the induced miss distance has a close correlation with navigation constant N, system damp and bandwidth while a low system damp and bandwidth has adverse influence on miss distance. The induced miss distance does not de- crease to zero but increase to a constant value with the increasing flight time of the engagement when angular noise and target glint was in- troduced in the system.

关 键 词：瞄准误差 角噪声 目标闪烁 伴随法 比例导引 脱靶量 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程]