Radar tracking of the shuttle, like the final accurate ground-based navigation, had not yet begun.
对航天飞机的雷达追踪，如最后精确的陆基导航，还没有开始。
Air travel still relies on a ground-based tracking system from the 1950s, which forces planes to use inefficient routes in order to stay in contact with controllers.
自上世纪50年代以来，航空服务一直依赖于地面导航的航道系统，飞机被迫按低效航线飞行，以与空中交通管理员保持联系。
Furthermore, the idea and method of sensor model design were discussed in detail while taking example for the ground-based tracking-while-scanning radar.
并以地基边扫描边跟踪雷达为例，详细探讨了传感器模型的设计思路和方法。
The role of ground-based C-band pulse tracking radar(CBPTR) in manned space flight is of much concern.
地面C波段脉冲跟踪测量雷达（CBPTR）在载人航天中的作用是一个较为令人关注的问题。
The acquisition, tracking and control system for a ground based satellite tracking are described.
阐述了一种地面卫星跟踪的捕获跟踪控制系统。
This included most of the probes they sent up, the extension of Hubble's service life and the control of nearly all ground-based telescopes capable of tracking the Anomaly.
这包括了他们所发射的大多数探测器，哈勃太空望远镜的使用期限的延长，以及几乎所有能够追踪Anomaly的地面望远镜。
The method of generating the image sequence and ground truth based on ray - tracking in the optical flow;
采用基于特征的光流法，由单面冠状动脉造影图像序列估计二维血管的运动。
It is verified that the lunar probe can be navigated in real time by ranging data based on the local ground tracking site. The method and result of the research may serve as reference fort...
结果表明仅依靠局域的地面站，采用测距的方式，可以对探测器进行实时导航。
It is verified that the lunar probe can be navigated in real time by ranging data based on the local ground tracking site. The method and result of the research may serve as reference fort...
结果表明仅依靠局域的地面站，采用测距的方式，可以对探测器进行实时导航。
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