| CMFB-DWMT多载波系统与DMT多载波系统的比较 |
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| 引用本文： | 程玉荣,邵晓君,刘鸿. CMFB-DWMT多载波系统与DMT多载波系统的比较[J]. 通信学报, 2002, 23(1): 60-69 |
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| 作者姓名： | 程玉荣 邵晓君 刘鸿 |
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| 作者单位： | 青岛潜艇学院,观通教研室,山东,青岛,266071 |
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| 摘 要： | 本文首先讨论了基于余弦调制滤波器组（cosine modulation filter-banks-CMFB)的多载波调制解调结构的快速实现。然后在性能和抗噪方面对CMFB多载波结构与DMT（discretemulti-tone)作了分析和比较。计算机仿真结果显示，CMFB－DWMT(discrete wavelet multi-tone）在左频域特性、抑制噪声和抑制突发错误方面比DMT有较大的优势。
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| 关 键 词： | 余弦调制滤波器组 离散多音 多载波系统 |
| 文章编号： | 1000-436X(2002)01-0060-10 |
| 修稿时间： | 2000-07-17 |
The comparison between multi-carrier systems of CMFB-DWMT and DMT |
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| CHENG Yu-rong,SHAO Xiao-jun,LIU Hong. The comparison between multi-carrier systems of CMFB-DWMT and DMT[J]. Journal on Communications, 2002, 23(1): 60-69 |
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| Authors: | CHENG Yu-rong SHAO Xiao-jun LIU Hong |
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| Abstract: | In this article, we first discuss the rapid realization of multi-carrier modulation-demodulation structure based on cosine modulation filter-banks(CMFB). Then, we analyze and compare the transmission performance and noise immunity of CMFB-DWMT (discrete wavelet multi-tone) with those of DMT(discrete multi-tone). The results of computer simulation show that CMFB-DWMT has better performance than DMT in frequency efficiency, noise immunity, and restraining burst error. |
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| Keywords: | cosine modulation filter-banks discrete multi-tone multi-carrier |
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