市话信道测试研究  

Measurement and Research of the City Telephone Channels

作　　者：苗长云[1] 梁全市 薛鹏骞[2] 杨维[3] 

机构地区：[1]阜新矿业学院通信技术研究所 [2]阜新矿业学院电工基础教研室 [3]阜新矿业学院电工学教研室

出　　处：《辽宁工程技术大学学报（自然科学版）》1993年第3期58-61,共4页Journal of Liaoning Technical University (Natural Science)

摘　　要：在对市内电话信道阻抗特性、衰耗特性测试的基础上,提出市话线路可采用频分复用的方法传递载波信号,如数字调制信号、语言载波信号等。从而提高市话信道的利用率。该测试结果可为研制市话信道复用的通信设备提供参考.This paper,based on the measurement of the impedance-frequency characteristics and attenuation characteristics of the city telephone line network ,proposes a method of FDM to transfer carrier signal,such as digital modulation signal,tone carrier signal,etc . thus the utilization ratio of the city telephone line is improved. This measured result can offer reference for studying communication equipment of multiplexing the city telepone channels.

关 键 词：电话信道 阻抗特性 衰耗特性 频分复用 测试 

分 类 号：N5[自然科学总论]