基于FPGA的基带信号编译码器设计与实现  

Design and Implementation of Digital Baseband Signal Coder & Decoder Via FPGA

作　　者：夏平[1] 向学军[1] 吉培荣[1] 

机构地区：[1]三峡大学电气信息学院

出　　处：《微计算机信息》2007年第05Z期210-211,136,共3页Control & Automation

基　　金：湖北省教育厅自然科研基金项目(D200513001)

摘　　要：数字基带信号的传输是数字通信系统的重要组成部分。在数字通信系统中,为使基带信号适合在基带信道中传输,必须选择合适的码型,AMI码是常选的码型之一。本文针对数字基带传输系统中AMI码的特点,采用基于CPLD/FPGA的VHDL语言,在Max+plusII的编程环境中,仿真实现了AMI的编码器和译码器。实验结果表明,实现的AMI编、译码器简单、可靠,下载至芯片中能够方便地实现AMI码基带信号形成器。The digital baseband signal transmission is the digital communication system important constituent. In the digital communication system, for causes the baseband signal to suit in the baseband channel transmits, must choose the appropriate code, the AMI code is one of choice codes .The AMI code characteristic in the digital baseband transmission system, the paper uses based on the CPLD/FPGA VHDL language, has realized the AMI encoder and the decoder in the Max-plusH programming environment. The experimental result show that, the coder ＆ decoder is simply and reliable , downloads to the chip in can realize the AMI code baseband shaping unit conveniently.

关 键 词：数字通信系统 数字基带信号 FPGA AMI码 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TN914.3[自动化与计算机技术—计算机科学与技术]