基于CPLD的连续相位QAM调制器  

Phase Continuous QAM Modulator Basing On CPLD

作　　者：柯炜[1] 殷奎喜[1] 

机构地区：[1]南京师范大学物理科学与技术学院,210097

出　　处：《微计算机信息》2007年第02Z期202-203,253,共3页Control & Automation

基　　金：江苏省重点实验室开放基金(JK20050304);教育部科技重点项目基金资助(K02171)

摘　　要：本文以CPLD器件为核心设计连续相位QAM调制器,将绝大部分功能模块由大规模CPLD内部资源来实现,这样既可以提高通信系统的稳定性和灵活性,又便于系统的集成化和小型化。由于连续相位QAM调制独特的相位变化,调制器中采用了双通道设计,成功实现了过渡区相位与主要区间相位的交替产生。We introduce a kind of new QAM modulation which makes phase switch into phase continuous change . The majority of function in modulator are realized by CPLD resource,which can not only enhance the system＂ s reliability, agility and integration, but also reduce its size. Because of the particular phase transformation in phase-continuous QAM, double-channel design is successfully applied to coming into being transition-phase and main-phase ahernately.

关 键 词：连续相位 QAM调制 频谱利用率 

分 类 号：TN92[电子电信—通信与信息系统]