| 市话信道测试研究 |
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| 引用本文： | 苗长云,梁全市,薛鹏骞,杨维.市话信道测试研究[J].辽宁工程技术大学学报(自然科学版),1993(3). |
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| 作者姓名： | 苗长云 梁全市 薛鹏骞 杨维 |
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| 作者单位： | 阜新矿业学院通信技术研究所
(苗长云)，阜新矿业学院电工基础教研室
(梁全市，薛鹏骞)，阜新矿业学院电工学教研室(杨维) |
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| 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.
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| 关 键 词： | 电话信道 阻抗特性 衰耗特性 频分复用 测试 |
Measurement and Research of the City Telephone Channels |
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| Miao Changyun Liang Quanshi Xue Pangqian Yang Wei.Measurement and Research of the City Telephone Channels[J].Journal of Liaoning Technical University (Natural Science Edition),1993(3). |
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| Authors: | Miao Changyun Liang Quanshi Xue Pangqian Yang Wei |
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| Institution: | Miao Changyun Liang Quanshi Xue Pangqian Yang Wei |
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| Abstract: | 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. |
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| Keywords: | telephine channels impedance-frequency charactetistics attenuation charac-teristics frequency-division multiplexing measurement |
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