| 1. | Extra - atmospheric trajectory design of an intercontinental ballistic missile
洲际弹道导弹大气层外弹道设计 |
| 2. | The orbiter was designed to circle venus at varying heights above the planet ' s atmosphere
人造卫星是被设计以不同高度在金星大气层外环绕。 |
| 3. | Earlier this year , the first flight test conducted at pmrf demonstrated thaad ' s ability to intercept a threat representative target in the high endo - atmosphere
该年的早些时候，在该靶场进行的测试，展示了其拦截大气层外典型目标的能力。 |
| 4. | The main works of this thesis are research of the direct lateral force ' s application , on the exoatmosphere kinetic - kill vehicle and on the inner - atmosphere airdefence missile
本文主要研究了直接侧向力技术在大气层外动能拦截器和大气层内防空导弹中的应用。 |
| 5. | Astronauts today tuesday announced the discovery of another planet obeying orbiting a distant star , making it the most crotic crowded planetary system outside our role own
天文学家周二宣布发现了一颗绕固定恒星运行的行星，这就构成了大气层外最拥挤的行星系统。 |
| 6. | Exoatmospheric kinetic interception is an important resort of ballistic missile defense . thus the research and study on exoatmospheric kinetic vehicle is significant for the technological improvement of national ballistic missile defense
大气层外动能拦截是弹道导弹防御的重要手段,因此对大气层外动能拦截器的跟踪研究对我国弹道导弹防御技术的发展有重要意义。 |
| 7. | Abstract : the paper emphasizes on exoatmospheric antimissile missile rapid reaiming problem , and according to pontryagin ' s maximum principle the optimal control law in the conditions of long miss distance and long elimination time is presented
文摘:针对大气层外反导导弹快速重新瞄准问题，在脱靶量和消除它的时间都比较大的情况下，用庞特里亚金极大值原理求出了最优控制规律。 |
| 8. | The main works and achievements are described : ( 1 ) the application of direct lateral force on the exoatmosphere kinetic - kill vehicle . at first , the collectivity project of the exoatmosphere kinetic - kill vehicle is specified , the motive model of the exoatmosphere kinetic - kill vehicle and target are constructed , and the thrust performance of trajectory - control engine and attitude - control engine are presented
研究的内容及成果主要表现在以下几个方面： (一)直接侧向力在大气层外动能拦截器中的应用首先确定了动能拦截器的总体方案，分别建立目标运动和动能拦截器运动的数学模型，以及轨控和姿控发动机的推力模型。 |
| 9. | First , proper initial conditions between ekv and target are the premise of hit - to - kill . capture region is described by equations of relative motion defined in modified polar coordinate while phasetrajectory graph is introduced . and the disturbance of initial condition biase is analyzed by cadet through statistical linearization of ekv dynamical model
本文在修正极点坐标系中建立拦截器和目标之间的相对运动方程,结合相平面轨迹图,分析了大气层外动能拦截器的拦截区;对大气层外动能拦截器动力学模型进行统计线性化,采用协方差分析描述函数法,分析了初始状态误差对弹道的影响。 |
| 10. | The main work and achievements are described as follows : ( 1 ) the analysis of the extra - atmospheric kinetic - kill vehicle at first , the motion model and dynamics model of the kinetic - kill vehicle is constructed , and the thrust performance of trajectory - control system and attitude - control system are presented , then the algorithms of realizing the guidance law , the methods of trajectory and attitude control are studied
研究内容及成果主要表现在以下几个方面： (一)大气层外动能拦截器分析首先建立了动能拦截器运动学和动力学模型，以及轨控发动机和姿控发动机的推力模型，提出了拦截导引律的实现方法及轨控和姿控发动机的控制规律。 |
