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数字通信四次群信号发生器研制
引用本文:丁俊民,包志华.数字通信四次群信号发生器研制[J].苏州大学学报(医学版),1999,15(3):68-72.
作者姓名:丁俊民  包志华
作者单位:南通工学院!南通226007
摘    要:介绍的数字通信四次群信号发生器是以 ITU-T  G.755建议为标准研制的.信号发生器可输出两种码型的数据流,一路是CMI码流,另一路是普通二进制码流,数据速率为139.264Mb/s.信号发生器还输出139.264MHz的同步脉冲.设计中采用了高速ECL器件,EPLD和8951单片机。信号发生器可产生可编程设定符合G.755建议的多套码型.

关 键 词:ITU-TG.755  四次群  信号发生器  EPLD

A QUARTIC GROUP SIGNAL GENERATOR FOR DIGITAL COMMUNICATION
Ding Junmin,Bao Zhihua,Jing Weiping.A QUARTIC GROUP SIGNAL GENERATOR FOR DIGITAL COMMUNICATION[J].Journal of Suzhou University(Natural Science),1999,15(3):68-72.
Authors:Ding Junmin  Bao Zhihua  Jing Weiping
Abstract:The quartic group signal generator in this paper is based on ITU-T recommendation. G.755. It can output two types s of data cedes, CMI code and BIN code. The data rate reaches 139. 264 Mb/s. A synchro pulse of 139. 264 MHz is also produced. High-speed ECL, EPLD and 8951 are employed in the design. The signal generates several sets of codes, which are programmable and conform with the recommendation G. 755.
Keywords:ITU- T G  755  EPLD  quartic group  signal generator
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