| 基于高速Modem的电力线载波数字接入技术 |
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| 引用本文： | 李鹏,黄芝平,张弈猛.基于高速Modem的电力线载波数字接入技术[J].电力系统自动化,2001,25(16):53-55. |
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| 作者姓名： | 李鹏 黄芝平 张弈猛 |
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| 作者单位： | 国防科技大学机电工程与自动化学院, |
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| 摘 要： | 介绍了在开发数字式电力线载波通信系统过程中涉及的一项关键技术－电力线载波数字接入技术，数字式电力线载波通信系统采用话音压缩，数字编码，数字复接等技术，完成话音与远动数据的汇合，以TCM（格栅编码调制（方式在电力线上传输高频信号，在接收端采用TCM解调，Viterbi译码，自适应均衡等技术再生恢复出原始信息，其中高速Modem采用AD公司Modem专用开发芯片ADSP－21mod870,以一整套软，硬件解决方案高效实现了专用Modem的性能要求。
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| 关 键 词： | 电力线载波通信 数字接入技术 Modem 调制解调器 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
DIGITAL ACCESS TECHNOLOGY OF PLC BASED ON HIGH-SPEED MODEM |
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| Li Peng. Huang Zhiping,Zhang Yimeng.DIGITAL ACCESS TECHNOLOGY OF PLC BASED ON HIGH-SPEED MODEM[J].Automation of Electric Power Systems,2001,25(16):53-55. |
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| Authors: | Li Peng Huang Zhiping Zhang Yimeng |
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| Abstract: | digital access technology of PLC. the key technology of developing the digital PLC system, is discussed in thisarticle. Using the technologies of speech compression. digital coding and digital multiplex, the digital PLC system completesthe syncretism of speech and data. High frequency signal is transmitted through the power line as the mode of TCM. Thetechnology of TCM demodulation, Viterbi decoding and adaptive equalization are used in the receiving module to resume theoriginal signal. A new digital signal processor ADSP--21mod870 is adopted to develop the high--speed Modem. A completesolution based on the new processor achieves the high performance requirement of the specific Modem. |
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| Keywords: | power-line carrier communication: digital access technology: high--speed Modem |
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