【作者】 李志芳；

【导师】 李勇；

【作者基本信息】 西北工业大学 ， 通信与信息系统， 2003， 硕士

【摘要】 电力线载波通信(PLC)是电力系统特有的一种通信技术，在电力系统通信网中占有非常重要的地位。数字电力线载波机(DPLC)的出现，是电力线载波通信的发展方向。 本文概要介绍了电力线载波通信的原理、特点以及电力线载波通信的数字化技术。对载波机数字化的一种实现方案——语音数据复接技术进行了详细的讨论，重点介绍语音压缩编码、数据的异／同步转换和复接等关键技术。给出了一种基于数字信号处理器(DSP)的载波机系统的实现方案，完成了系统的硬件电路和软件程序的设计，在TMS320VC5410试验板上进行了调试和测试，取得了有意义的实验结果。 本文的研究结果表明，基于数字信号处理器(DSP)技术，对传统的电力线载波机进行数字化改造，可以提高系统的容量和性能。本文的工作对载波机数字化技术的研究有一定的参考价值。更多还原

【Abstract】 Power line carrier (PLC) is a special technique of communication in electric power system, which has very important status in communication net of electric power system. As the appearance of digital power line carrier (DPLC), it has gradually become the developing direction of power line carrier.This thesis generally introduces the principles, features and digitalization of power line carrier. Firstly, a research and realization of digital power line carrier-data and voice multiplex technology is specifically described. Secondly, voice compressed code, data asynchronous/synchronous convert and multiplex technique are emphatically introduced. Thirdly, a detailed project of realizationincluding part of hardware and software is provided. And finally the debugging of hardware and software has been fulfilled on a test board of TMS320VC5410. A valuable result has been achieved at last.The result indicates that the capacity and performance of power line carrier can be greatly improved by digitalization based on digital signal processor (DSP) technique, which might be useful to the further research of digitalization of power line carrier.更多还原