Because the moon's body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.
由于月球阻碍了与探测器的直接无线电通信，中国首先必须把一颗人造卫星送入月球轨道上的一个点，人造卫星可以从那里向航天器和地球发射信号。
The satellite is currently in orbit after a successful separation and has sent communication signals which have been received by a ground team in Malindi, Kenya.
卫星在成功实施分离后正运行在预定轨道，并且已经向位于肯尼亚马林迪的一个地面小组发射了通讯信号。
"Orion" is the latest in a series of the agents satellite, used to intercept the world many local and long distance call the point-to-point wireless signals-microwave communication.
“猎户座”是美国一种最新的特工卫星系列，被用来截获世界许多本地及长途电话所采用的点到点无线信号——微波通讯。
In communication satellites 'processing transponders, the on-board demodulation is an important technology, which can improve the transmission qualities of satellite signals.
在通信卫星的处理转发器中，星上解调是一项重要的技术，可以提高卫星通信信号的传输质量。
SIGINT(Signal Intelligence) satellite is used to detect, intercept a nd locate electromagnetic(EM) signals radiated by systems such as ground radar, communication and TT&C systems.
信号情报侦察卫星用于侦收地面雷达、通信和测控等系统所辐射的电磁信号并对其定位，是航天侦察的重要手段。
Fast acquisition for overlapping DS-signals is an important question in developing satellite fast positioning and communication systems.
多重直扩信号的快速捕获是卫星定位及通信系统研制过程中遇到的一个主要课题。
Fast acquisition for overlapping DS-signals is an important question in developing satellite fast positioning and communication systems.
多重直扩信号的快速捕获是卫星定位及通信系统研制过程中遇到的一个主要课题。
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