论文部分内容阅读
本文介绍一种性能优良的传输全电视信号的实用光纤传输中继机及它的工作原理、性能和指标测量。其性能符合《电视视频通道测试方法》规定的主要指标。经现场试验,该中继传输系统传送一路彩色全电视信号,可延伸传输距离大于20km(光纤损耗0.8dB/km),富余量7dB,传输性能优良,图象清晰逼真,伴音保真度高。
This article describes a good performance of all-television signal transmission of practical optical fiber transmission relay and its working principle, performance and index measurement. Its performance in line with “TV video channel test method” provides the main indicators. The field test, the relay transmission system to send all the way full-color television signals, extend the transmission distance greater than 20km (fiber loss 0.8dB / km), the margin of 7dB, excellent transmission performance, vivid images, audio fidelity high.