而近年来，非法信号多次攻击广播电视卫星转发器，造成了许多不良影响。
In the recent years, some of the TV channels Broadcasted by satellite are attacked by unlawful signal.
从非法信号攻击卫星转发器的原理入手，探讨了有线电视前端卫星信号安全接收的措施，对保证有线电视的安全播出具有重要的参考意义。
This paper discusses the ways how to receive satellite signal safely from the principle of illegal signal attacking satellite repeater. This has important significance for CATV safety transmission.
由中国空间技术研究院开发研制的“鑫诺二号”通信卫星重约5.1吨，星上载有22个转发器。
SinoSat-2, mainly developed and manufactured by the Chinese Academy of Space Technology, weighs about 5.1 tons and has 22 transponders.
数据转发器，包含内容提供者和用于在IP网络上传输和接收数字资产所需的设备(如卫星接收器、编码器等)。
The headend, consisting of content providers and equipment (such as the satellite receiver, encoders, and so on) needed to transmit and receive digital assets, onto the IP network.
如若不能或卫星运营商改变转发器参数后一大批直播星用户的权益谁来保护？
If it can't or satellite operators change transponders after a large number of parameters live star the rights and interests of the users who will protect?
本文研究了存在上行干扰时透明转发器卫星通信系统的性能。
The effect of filter bandwidth in soft limiting satellite transponder with uplink interference is studied.
对透明转发器卫星通信系统，干扰的有效功率必须大于所有用户的总功率，宽带干扰或梳状谱干扰是较好的干扰方式。
For satellite communications system with a transparent transponder, the effective jammer power must be larger than the total power of all t...
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。
In communication satellites 'processing transponders, the on-board demodulation is an important technology, which can improve the transmission qualities of satellite signals.
研究了有干扰时透明转发器卫星通信系统中的互调分量。
It is studied that intermodulation products of transparent transponder satcom system with interference.
分析表明，对卫星上行线路、下行线路以及转发器进行干扰可以达到干扰卫星通信的目的。
Finally, we can interfere satellite communication by interfering the channel of uplink, downlink and transmit.
中国终于有了自己的广播电视直播卫星—中星九号，尽管它目前只是为“村村通”开通了4个转发器，尚有18个转发器处于“闲置”状态。
China has finally got his own radio and television live satellite-zhongxing 9, although it at present only for the "rural" opened the four transponders, there are 18 forwarders in the "idle" state.
中国终于有了自己的广播电视直播卫星—中星九号，尽管它目前只是为“村村通”开通了4个转发器，尚有18个转发器处于“闲置”状态。
China has finally got his own radio and television live satellite-zhongxing 9, although it at present only for the "rural" opened the four transponders, there are 18 forwarders in the "idle" state.
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