| 基于逐符号检测的部分响应系统分析 |
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| 引用本文： | 彭嫦飞,叶哲江,邵玉斌.基于逐符号检测的部分响应系统分析[J].云南民族大学学报(自然科学版),2006,15(3):256-258. |
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| 作者姓名： | 彭嫦飞 叶哲江 邵玉斌 |
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| 作者单位： | 昆明理工大学,信息工程与自动化学院,云南,昆明,650051 |
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| 摘 要： | 利用部分响应信号(双二进制脉冲)可控地引入符号间干扰(ISI),设计可近似物理实现的发送滤波器和接收滤波器收发信号,牺牲功率利用率来换取较高的频谱利用率,使得符号传输速率达到奈奎斯特速率.在调制信号前采用数据预编码,对接收信号进行相应译码,以消除信道中噪声引起的差错传播.
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| 关 键 词： | 部分响应 码间干扰 升余弦滚降滤波器 |
| 文章编号： | 1672-8513(2006)03-0256-03 |
| 修稿时间： | 2006年3月28日 |
The Partial-Response System with Symbol-by-Symbol Detection |
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| Peng Changfei,Ye Zhejiang,Shao Yubin.The Partial-Response System with Symbol-by-Symbol Detection[J].Journal of Yunnan Nationalities University:Natural Sciences Edition,2006,15(3):256-258. |
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| Authors: | Peng Changfei Ye Zhejiang Shao Yubin |
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| Abstract: | A partial-response signal called duobinary signal pulse is used to control ISI in the system,which includes physically realizable transmitting and receiving filters for the transmission of signals.This operation is designed to get better frequency utilization efficiency at the price of power utilization and to achieve a symbol transmission of the Nyquist rate.Error propagation caused by noise can be avoided by precoding the data at the transmitter prior to modulation and decoding operation of received signals. |
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| Keywords: | partial-response ISI roll-off filter with raised cosine spectrum |
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