ADSL PCI调制解调器及相关功能模块的设计实现
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摘要
本论文对ADSL PCI MODEM硬件电路及各功能模块进行了详尽的
    论述,研究DMT编码理论并设计完成了ADSL PCI MODEM。论文首先引
    入了ADSL的基本概念,重点分析了ADSL标准,ADSL接口规范及
    ADSL的帧结构,对ADSL标准中所规定的DMT编码原理进行了研究并
    提出了实现方案。本文的第二部分进行ADSL PCI MODEM硬件电路的
    设计,在比较了多种芯片方案的基础上,提出了基于ITEX芯片组的
    系统解决方案,并实现了完整的ADSL PCI MODEM样机。本文的第三
    部分对ADSL专用芯片中均衡器(equalizer)和串行通讯接口模块
    UART进行了VHDL语言设计和仿真,并通过Matlab工具进行算法验
    证。文章的第四部分介绍了ADSL PCI MODEM的测试环境,测试过程
    和重要的测试数据。
The mission of this project is designing the hardware circuit of ADSL
     PCI MODEM,researching Decrete Muti-Tone(DMT) coding method,putting
     forward the scheme of DMT and relative functional unit.This thesis is
     devided into four parts.The first part introduces the basic concept of
     ADSL,ADSL standard and interface regime,ADSL frame structure focusing
     on DMT theory and the method to design DMT circuit.The second part
     analyzes the difficulties to design ADSL PCI MODEM and compares the
     several current solutions.On the basis of ITEX ADSL chips solution,the
     paper puts forwards the hardware system design including every
     subsystem.In the third part of the thesis,equalizer of DMT coder and serial
     communication unit(UART) of ADSL core chip are been design and been
     verified with VHDL language Matlab tools.lt will do some benefits to
     develop ADSL core chip.At the last,the paper describes the test
     enviroment ,test procedure and induces some important test results.All the
     source code and circuit designing kit are attached in the appendix.
引文
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    5. Working Draft ADSL Standard ANSI Tl. 413-1995
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    7. 王志华,邓仰东.数字集成系统的结构化设计与高层次综合.北 京:清华大学出版社,2000
    8. 谢元清,解月珍.通讯电子线路.北京:北京邮电大学出版社, 2000
    9. 楼顺天,李博菡.基于MATLAB的系统分析与设计-信号处理. 西安:西安电子科技大学出版社,1998
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    12. SIMON HAYKIN ADAPTIVE FILTER THEORY, PRENTICE HALL
    13. 侯伯亨,顾新.VHDL硬件描述语言与数字逻辑电路设计.
    
     西安:西安电子科技大学出版社,1997
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