HFC网光链路损耗和分光比理论计算与实测结果分析  

The Results Analyses Between Theoretical Calculation and Measured Value for Optical Link Loss and Optical Divide Radio in HFC Net

作　　者：袁士刚[1] 张好国 

机构地区：[1]南通广播电视网络传输中心,江苏南通226001 [2]南通电视台,江苏南通226001

出　　处：《中国有线电视》2003年第3期38-40,共3页China Digital Cable TV

摘　　要：南通开发区外商用光缆专线传输系统的设计应用了HFC网光链路分光比计算的两种方法 ,即控制末端载噪比法和末端功率法 ,通过对理论计算和实测值的比较 ,指出两种设计方法的实用性 ,并建议在实际设计中采用末端载噪比法设计为宜。This thesis discusses two methods in computing optical divide ratio of HFC net optical link in the design of the special fiber optical cable transmission system for foreign business in Nan Tong Development Area. i.e control extremity carrier noise ratio and control end powers. By comparing the theoretical computing results and actual measurements, and discussing the practicability of the two methods, it suggests that the extremity carrier noise ratio is a better design in practice.

关 键 词：HFC网 保护裕量 分光比 光链路总耗 末端载噪比法 

分 类 号：TN943.6[电子电信—信号与信息处理] TN915.62[电子电信—信息与通信工程]