In order to use the bandwidth of transmission system high efficiently , and to decrease its cost , the high - powerful interface circuits ? ? line driver and equalizer are necessary in high - speed data transmission system 为了高效率地利用数据传输系统的带宽,降低成本,高性能的接口电路? ?线驱动器和均衡器,成为数据传输系统不可缺少的部分。
So it is academically and practically significant to embark on studying security technologies of hfc network and discussing the establishment of our national security standard using in data transmission system of hfc network 着手对hfc网络安全技术的研究,对适用我国hfc网络数据传输系统安全标准制订的探索,有着非常重要的学术价值和现实意义。
Amphenol rf , as a division of amphenol cooperate concentrates on rf solutions , is the world ' s largest manufacturer of coaxial connectors for use in radio frequency , microwave , and data transmission system applications 作为安费诺集团下负责射频解决方案的分部,安费诺射频是全球最大的同轴连接器制造商之一,产品主要用于射频,微波和数据通信领域。
However , high - speed data transmission system suffers from time - variant multi - path fading and inter - symbol interference ( isi ) . as a solution , adaptive equalization can effectively combat isi by compensationg for channel distortation 随着数据率的提高,信道呈现出频率选择性,信号的一些频率成分将产生深度衰落,产生码间干扰( isi ) ,影响系统的性能。
Orthogonal frequency division multiplexing ( ofdm ) scheme has become a popular technique in various high - speed wireless data transmission system , and it has been proposed as a standard for the next - generation mobile radio communication system 正交频分复用( ofdm )技术已经成功的应用于许多高速无线数据通信系统中,并成为下一代移动通信系统所采用的标准之一。