以调制技术为主线，介绍有线电视系统中模拟调制技术、光调制技术和数字调制技术的基本原理。
This paper takes modulation technique as main hint, summarizes the essential principle of analogue modulation technology, optical modulation and digital modulation technology.
改变现在粗放的管理模式，建立高效的数字有线电视网络管理系统。
Thus, present managing model is changed and effective digital television network managing system is set up.
本文所研究的正是数字视频广播有线电视(DVB - C)调制器的系统构建和核心算法的实现。
This paper focuses on the construction of the whole DVB-C modulator system and the realization of the core algorithm.
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