基于DMT和DWMT宽带接入的理论与实践  

Theory and Practice Based on the DMTand DWMT Broadband Access

作　　者：王临生[1] 

机构地区：[1]山西师范大学,临汾041004

出　　处：《实验室研究与探索》2006年第1期67-69,共3页Research and Exploration In Laboratory

摘　　要：论述了目前宽带接入网中的两种调制解调新技术———离散多音频调制(DMT)技术和离散小波多音频调制(DWMT)技术,对二者的原理和关键技术进行了分析,并对其性能、优缺点和使用范围作了比较。同时介绍了宽带接入中调制技术的发展动向。Two modulation and demodulation techniques were discussed, including Discrete Multi-Tone（DMT） and Discrete Wavelet Multi-Tone （DWMT）. Their modulation and demodulation principle and key techniques were analyzed. Their performance, advantages and disadvantages and applying fields were also compared. In the end, the development trend of modulation techniques in residential broadband was introduced.

关 键 词：宽带接入 调制解调 离散多音频调制(DMT) 离散小波多音频调制(DWMT) 

分 类 号：TN915.6[电子电信—通信与信息系统]