首页 | 本学科首页   官方微博 | 高级检索  
     

考虑复合控制系统动态特性的前向拦截制导律
引用本文:张友安,吴华丽,梁勇. 考虑复合控制系统动态特性的前向拦截制导律[J]. 宇航学报, 2015, 36(2): 158-164. DOI: 10.3873/j.issn.1000-1328.2015.02.005
作者姓名:张友安  吴华丽  梁勇
作者单位:海军航空工程学院控制工程系,烟台264001
基金项目:航空科学基金(20120184001)
摘    要:为满足临近空间拦截高速大机动目标的实际需求,研究了考虑直接力/气动力复合控制动态特性的前向拦截制导律设计方法。在考虑连续气动力和离散直接力特点的基础上,给出了一种在气动舵控制基础上设计连续直接力、然后通过冲量等效法进行离散化的直接力设计方法,避免了复杂的控制分配问题。根据二维前向拦截导引运动学模型和拦截导弹动力学模型,利用时间尺度分离,将拦截导弹和目标的质点运动学与加速度慢变子系统构成的动态系统,看成慢变子系统,设计了俯仰角速度指令;将俯仰角速度动态子系统看成快变子系统,通过对俯仰角速度指令的跟踪控制设计得到考虑复合控制系统动态特性的前向拦截导引律。仿真结果校验了本文方法的正确性和有效性。

关 键 词:直接力/气动力复合控制  前向拦截  导引律  控制系统动力特性  时间尺度分离  
收稿时间:2013-12-18

Head Pursuit Guidance Law Considering Dynamic Characteristic of Hybrid Control System
ZHANG You-an;WU Hua-li;LIANG Yong. Head Pursuit Guidance Law Considering Dynamic Characteristic of Hybrid Control System[J]. Journal of Astronautics, 2015, 36(2): 158-164. DOI: 10.3873/j.issn.1000-1328.2015.02.005
Authors:ZHANG You-an  WU Hua-li  LIANG Yong
Affiliation:Department of Control Engineering , Naval Aeronautical and Astronautical University, Yantai 264001,China
Abstract:Head pursuit guidance and control law with consideration of dynamic characteristic for missiles with blended lateral jets and aerodynamic control is researched in order to meet practical requirement for intercepting targets with high velocity and high maneuver in near space. A lateral jets control approach is given in consideration of characteristics of discrete lateral jets and continuous aerodynamic control, thus avoiding the complicated control allocation problem. In this approach, the lateral jets control is supposed to be continuous and is designed on the base of aerodynamic control, and then is discretized by impulse equivalence. According to the kinematics model of two dimensional head pursuit guidance and the dynamics model of interceptor missile, and using time-scale separation, the kinematics model of interceptor and target, together with the acceleration dynamics is treated as the slowly varying subsystem, while the pitch angular rate dynamics is treated as the fast varying subsystem. The pitch angular rate command is designed and the head pursuit guidance law considering the dynamic characteristic of blended lateral Jets and aerodynamic control is obtained by designing the tracking control law of pitch angular rate command. The simulation results show the accuracy and the effectiveness of the proposed method.
Keywords:Blended lateral jets and aerodynamic control  Head pursuit   Guidance law  Dynamic characteristic of control system   Time-scale separation  
本文献已被 CNKI 等数据库收录!
点击此处可从《宇航学报》浏览原始摘要信息
点击此处可从《宇航学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号