Second part : Recommend the short wave communication system to be designed overallly.
第二部分：介绍短波通信系统总体设计。
参考来源 - 短波通信数据传输编码的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The subject in this thesis comes from the researching of some special ultra short wave communication device transmission system.
本文所研究内容的课题来源于某专用超短波通信设备转信系统的研究。
It is inevitable that the communication system is disturbed, especially the short wave communication, its signal is easily disturbed by the noise.
通讯系统中的干扰是不可避免的，尤其是短波通讯，信号更容易受到噪声的干扰。
Short wave is radio frequency band earliest utilized by human being, and short wave communication is one modern communication method with a long history.
短波是人类最早开发利用的无线电频段，短波通信是历史最为悠久的现代通信手段之一。
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