...术基本原理 根据我国有线电视网络频率分割的标准,将 IP DATA (以太数据信号)在 65MHz或45MHz以下频 段传输, TV RF(有线电视信号)在 87MHz以上频带 传输,可以实现两个信号的共缆传输,而互不影响.
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Based on the characteristic extracting of RF signal in digital cable TV system, this paper puts forward an algorithm for modulation recognition between 16qam and 64qam RF signals.
从有线数字电视射频信号特征参数提取着手，建立了一套识别16 QAM和64 QAM射频信号调制方式的数学算法。
RF coaxial cable with gas expanded, PE insulation and aluminium tube sheath is mainly used in cable TV system as trunk and distrubution transmission lines.
铝管外导体物理发泡射频同轴电缆主要用于有线电视系统中作干线、配线传输线。
In addition, he was also engaged in the RF front-end development of cable and satellite for digital TV and led the project return channel for cable.
另外，他还参与数字电缆和卫星电视接收机的射频部分研发并领导电缆电视上行信道工程。
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