他们的第一次发射已被取消，因为目标卫星爆炸。
Their first launch had been cancelled because the target satellite exploded.
本文对运用速度增益制导实现对目标卫星的拦截方法进行了研究。
This paper is about the study of realization of the target satellite interception method with velocity gain guidance.
事实上这也是美国选择空基反卫星武器的原因：目标卫星轨道不需要被改变。
In fact, the reason the U. S. air Force chose the air-launched anti-satellite system is that it does not have to have its target line up with a ground-based missile pad.
然而有别于中国实验的是美国的目标卫星的飞行轨道较低，从而所产生的残骸会在落入大气层后迅速燃烧。
Unlike the Chinese test, though, the American target was in such a low orbit that any debris would quickly have fallen into the air and burned up.
XSS-11能够自行与其他卫星自主交会并使用各种传感器紧密观测目标卫星，包括高分辨率的雷达绘图。
The XSS-11 was designed to be able to autonomously rendezvous with another satellite and observe it at close range with a variety of sensors, including high resolution LIDAR mapping.
对任务星施加持续的控制加速度，使其在飞行过程中相对于目标卫星的空间位置保持不变，即实现任意位置悬停飞行。
By implementing a continuous control acceleration, the relative position of a mission satellite to a target satellite can keep fixed during the mission.
摘要对任务星施加持续的控制加速度，使其在飞行过程中相对于目标卫星的空间位置保持不变，即实现任意位置悬停飞行。
Abstract: By implementing a continuous control acceleration, the relative position of a mission satellite to a target satellite can keep fixed during the mission.
仿真结果表明，该系统能够直观显示控制系统的控制效果，能够成功演示空间绳系机器人对目标卫星的捕获，满足实时性要求。
The result indicates that the proposed system can successfully visualize the control effect and the progress of the capture, and meets requirement in real time.
利用该算法进一步考虑初始时刻反卫星武器与目标卫星的位置关系和变轨消耗能量之间的关系，同时给出了发射窗口的求解算法。
Moreover, the relation of initial launch condition and energy consumption is discussed in this paper, and the determination of launch window is given.
美国空军空间指挥中心的数据表明，当拦截器撞击目标卫星时，碎片会以每小时超过1400英里(每秒2000码)的速度从撞击点飞散出去。
Air Force Space Command data show that when the kill vehicle impacted the target satellite, debris was ejected from the impact point at velocities of up to 1,400 MPH. (2,000 FPS.).
研究人员的最终目标在于利用卫星数据评估并提炼出当地及地区的模型，从而预测污染物浓度对污染排放的反应。
Ultimately, researchers aim to use satellite data to evaluate and refine local and regional models to predict how pollution levels respond to changes in emissions.
IS - 27超高频载荷为现有的超高频后续卫星系统(ufo)和未来的多用户目标系统(MUOS)提供补充。
The IS-27 UHF hosted payload provides capability to complement the existing UHF Follow-On (UFO) and future Multi-User Objective System (MUOS) satellites.
当汽车在开行当中时，跟踪设备用三个或四个GPS卫星以三角形定位，然后持续地通过无线电数字传输目标所在的坐标位置。
As the target drives around, the tracking device triangulates its position from three or four GPS satellites, and digitally transmits its coordinates continuously by radio.
地球上每一栋建筑都可以被精确的定位，基于卫星的全球定位系统将会根据需要来对那一目标进行精确制导。
The exact location of every building on the planet can be known. And satellite-based global-positioning systems will guide a smart bomb to that location on demand.
这些精明的目标发现间谍卫星（有可预见的轨道）位临上空时，能够知道如何隐蔽自己。
One theory is that it is a spy plane, designed to catch savvy targets that know how to go to ground when spy satellites—which have predictable orbits—are overhead.
这一切都让美国难以实现其“太空快速反应”(operationally responsive space)的目标：快捷而便宜地将卫星送上轨道的能力。
All this makes it hard for America to achieve its goal of "operationally responsive space" : the ability to place satellites in orbit quickly and inexpensively.
07年中国以他们的一个旧卫星作为陆基导弹练习的目标。
In 2007 the Chinese used one of their ageing weather satellites as target practice for a ground-based missile.
这些提供目标信息的传感器与陆地和卫星连接到GMD的两个结点并分配火控系统，这两个结点分别位于阿拉斯加的Fort Greely和科罗拉多州的ColoradoSprings。
The sensors provided target information via ground and satellite links to GMD\'s dual-node, distributed fire control system, located at Fort Greely, Alaska, and in Colorado Springs, Colo.
JRubyextras是一组卫星项目，其目标是要填充jruby与Ruby标准库之间的功能差距。
It is part of JRuby extras, a group of satellite projects which aim at filling the gap between JRuby and Ruby libraries.
立方体卫星的目标就是拥有一个可以留出更多装载量或装载空间的太空引擎，”Lozano说。
“The goal is to have a space engine that leaves plenty of room for the payload, or cargo, of the CubeSat, ” Lozano said.
指向的意思是要求卫星(或卫星上的设备)朝向一些地面目标。
Pointing refers to the requirement to point the satellite (or an instrument on the satellite) toward some ground object.
对太空目标的准确而及时地信息对于保护卫星很重要，同样对攻击卫星也是必要的。
Accurate and timely information on space objects is vital for defending a satellite, but also necessary for attacking one.
其中之一是将小卫星发射到低地球轨道构成卫星星座，以便能提供对目标的持续覆盖。
One calls for launching microsatellites into low Earth orbit in constellations that would provide continuous target coverage.
校准目标有可能比预料的要大，他说，这表明被校准卫星上的照相机的地面分辨率是很低的。
The calibration targets are larger than might have been expected, he said, suggesting that the satellite cameras they are being used to calibrate have surprisingly poor ground resolution.
该系统将用于美国海军移动用户目标系统(MUOS)卫星群的第一颗卫星，它是该公司迄今为止建造的最大的A2100空间飞行器。
S.Navy's Mobile User Objective System (MUOS) constellation.It is the largest A2100 spacecraft core structure ever built by the company.
在致导激光仪的协助下，发射器可将带有卫星定位系统且外壳附有环氧黏着剂的迷你跟踪设备投射并牢牢黏附到目标车辆上，这样警方就可以在不危及公众安全的前提下对嫌犯车辆进行追踪。
With the help of a guiding laser, it shoots a satellite-based tracking device, smothered in epoxy goo, onto the target vehicle, allowing the police to track the suspect without endangering the public.
该系统将用于美国海军移动用户目标系统(MUOS)卫星群的第一颗卫星，它是该公司迄今为止建造的最大的A2100空间飞行器。
S. Navy's Mobile User Objective System (MUOS) constellation. It is the largest A2100 spacecraft core structure ever built by the company.
该系统将用于美国海军移动用户目标系统(MUOS)卫星群的第一颗卫星，它是该公司迄今为止建造的最大的A2100空间飞行器。
S. Navy's Mobile User Objective System (MUOS) constellation. It is the largest A2100 spacecraft core structure ever built by the company.
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