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有线电视的发展是从模拟传输到数字传输的,同时传输材料由同轴电缆过度到光纤传输(传输介质由铜变成玻璃),成本降低。传输信号由电信号到光信号,信号质量在传输中也有质的飞跃。然而,由于传输数据量的增大,给广电网络通道带来更多、更高要求。本文论述了栖霞广电的发展历程中所遇到的问题,并对未来进行了展望,提出了光纤到户(Fiber To The Home,FTTH,也称Fiber To The Premises)是光纤通讯的传输优先考虑方法的建议,同时希望在不远的将来实现统一规范化。
The development of cable television is from analog transmission to digital transmission, while the transmission of materials from the coaxial cable to the optical fiber transmission (transmission medium from glass to glass), the cost reduction. Transmission signal from the electrical signal to the optical signal, the signal quality is also a qualitative leap in the transmission. However, due to the increase in the amount of data transmission, to broadcast network channel to bring more and higher requirements. This paper discusses the problems encountered in the development of Qixia Radio and Television, and looks forward to the future. It is proposed that Fiber To The Home (FTTH, also known as Fiber To The Premises) is the transmission priority of optical fiber communication At the same time, I hope to achieve unified standardization in the near future.