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16QAM和64 QAM射频信号调制方式的数学算法。
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.
事实上，由于频率较低，在射频接触水平相同的情况下，人体从调频收音机和电视吸收的信号比从基台吸收的信号要多四倍。
In fact, due to their lower frequency, at similar RF exposure levels, the body absorbs up to five times more of the signal from FM radio and television than from base stations.
这低于或相当于无线电或电视广播发射机造成的射频接触。
This is lower or comparable to RF exposures from radio or television broadcast transmitters.
本文就射频电磁场对人体健康的危害以及小功率电视发射天线的电磁污染问题作了简要的论述。
This paper makes a brief discussion on the harm upon human health by radio-frequency electromagnetic field and electromagnetic contamination problems of small power television emission antenna.
卫星射频测试探头允许直接测量lnb输出或卫星接收器或有线电视。
The RF satellite test probe allows direct measurement at the LNB output or at the satellite receiver or cable TV.
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。
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.
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。
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.
还给出了这种情况的摸拟实验方法，并指出了有线电视台保证射频调制器载频稳定度的重要性。
And then, this paper provided the simulation experiment of this condition. The importance of frequency stabilization of RF modul...
注明模具的形象，该xc 3028的单芯片模拟和数字电视调谐器显示完全集成的射频到基带功能块。
Annotated die image of the XC3028 single-chip analog and digital TV tuner showing the fully integrated RF-to-baseband functional blocks.
还给出了这种情况的摸拟实验方法，并指出了有线电视台保证射频调制器载频稳定度的重要性。
And then, this paper provided the simulation experiment of this condition. The importance of frequency stabilization of RF...
还给出了这种情况的摸拟实验方法，并指出了有线电视台保证射频调制器载频稳定度的重要性。
And then, this paper provided the simulation experiment of this condition. The importance of frequency stabilization of RF...
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