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基于在线轨迹规划的混合再入制导方法（英文）
  • ISSN号：1000-1328
  • 期刊名称：《宇航学报》
  • 时间：0
  • 分类：V448.2[航空宇航科学与技术—飞行器设计;航空宇航科学技术]
  • 作者机构：[1]北京航空航天大学飞行器控制一体化技术实验室,北京100191
  • 相关基金：国家自然科学基金重大研究计划资助项目（90916003）; 高等学校学科创新引智计划111工程（B07009）
作者： 王俊波[1], 曲鑫[1], 任章[1]
关键词： 再入飞行器, 再入制导, 航路点, 在线轨迹规划, 线性二次型调节器(LQR), Reentry vehicle , Reentry guidance, Waypoints , Online trajectory planning, Linear quadratic regulator （LQR）
中文摘要：

针对在线轨迹规划与跟踪,提出了一种混合再入制导方法。该方法将基于航路点的分段轨迹规划与轨迹跟踪制导有效地结合起来。首先给出再入飞行器无量纲运动方程,建立制导坐标系（GCF）,并推导了新坐标系下的经纬度表达式。并将再入飞行过程中各种飞行约束条件转换为控制变量约束。为了加快轨迹优化速度,设计了初始再入飞行轨迹和相关航路点,给出了基于航路点信息的分段轨迹在线规划方法。纵向飞行轨迹跟踪采用基于线性二次型调节器（LQR）的方法,横侧向制导采用横向误差走廊的方法进行控制。仿真结果显示,该方法在线轨迹规划平均计算时间小于0.2秒,且具有较高的制导精度。

英文摘要：

A hybrid reentry guidance algorithm is developed for a reentry vehicle. The online piecewise trajectory planning based on waypoints and trajectory tracking guidance algorithm are incorporated. The dimensionless kinematic equations of the reentry vehicle and the longitude-latitude expressions are established in guidance coordinate frame （GCF）. The reentry constraints are described and incorporated in the proposed guidance algorithm. The way points based on the initial reference trajectory are designed to piecewise implement trajectory planning. The linear quadratic regulator （LQR） controller is designed to implement longitudinal guidance, and the lateral error boundary is given to determine the sign of the bank angle. Simulation and experimental results indicate that the average calculating time of each trajectory planning is less than 0.2 seconds and the guidance accuracy requirements are satisfied as well.

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期刊信息
  • 《宇航学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国宇航学会
  • 主编：杜善义
  • 地址：北京市海淀区阜成路8号主楼306
  • 邮编：100048
  • 邮箱：yhxb@vip.163.com
  • 电话：010-68768614 68767316
  • 国际标准刊号：ISSN：1000-1328
  • 国内统一刊号：ISSN：11-2053/V
  • 邮发代号:2-167
  • 获奖情况:
  • 2006、2011年百种中国杰出学术期刊,2007年中国科协精品科技期刊工程,2006-2008年中国科技期刊优秀学术论文奖,2011年《中国精品科技期刊》称号
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:17670