摘要
                
                    在交会椭圆轨道目标阶段,Hill制导受各种误差因素的影响。介绍了椭圆轨道目标Hill制导的误差因素,并着重研究了导航误差和控制误差对终端位置的影响,给出了误差的基本表达式。与交会圆轨道目标情况进行比较,分析了初始真近点角对导航误差引起的终端位置偏差的影响。在此基础上给出了一种修正算法,理论上证明了修正算法能显著提高终端位置的精度。通过Monte-Carlo方法的仿真结果表明,合理改变初始真近点角能减小导航误差引起的终端位置偏差,并且修正算法能更有效提高制导精度。
                
                In the phase of rendezvousing a target on elliptical orbit,the accuracy of Hill's guidance is concerned with several error factors. The error factors considered here are mainly navigation error and actuation error. Basic analytic formulas of error models are derived. Compared with the situation of rendezvousing a target on circular orbit,we analyzed the terminal position error by the navigation error influence of initial true anomaly. Then an improved method of Hill's guidance is designed. The improved algorithm can obviously enhance the terminal position accuracy. The simulation results by Monte-Carlo method show that logically changing initial true anomaly can decrease the terminal position error by the navigation error,and the improved method can further enhance the guidance accuracy.
    
    
    
    
                出处
                
                    《宇航学报》
                        
                                EI
                                CAS
                                CSCD
                                北大核心
                        
                    
                        2010年第3期707-713,共7页
                    
                
                    Journal of Astronautics
     
            
                基金
                    国家自然科学基金(60674102)
                    国家自然科学基金重点项目(60535010)
            
    
                关键词
                    椭圆轨道
                    交会
                    Hill制导
                    误差分析
                
                        Elliptical orbit
                         Rendezvous
                         Hill's guidance
                         Error analysis
                
     
    
    
                作者简介
作者简介:张刚(1983-),男,博士研究生,导航、制导与控制专业,主要研究方向为飞行器制导与控制。通信地址:哈尔滨工业大学航天学院327信箱转507室(150001)电话:(0451)86413411—8507E-mail:zhmnggang3110@163.com