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| 基于辅助数据的SC-FDE系统频域LS信道估计 | |
| 引用本文： | 杜岩,张永生,王新征.基于辅助数据的SC-FDE系统频域LS信道估计[J].电子与信息学报,2007,29(4):954-958. |
| 作者姓名： | 杜岩 张永生 王新征 |
| 作者单位： | 1. 山东大学信息科学与工程学院,济南,250100 2. 上海交通大学图像通信与信息处理研究所,上海,200240 3. 东南大学移动通信国家重点实验室,南京,210096 |
| 基金项目： | 山东大学校科研和教改项目 |
| 摘 要： | 通过对单载波频域均衡(SC-FDE)系统的分析得出了对最小二乘(LS)信道估计中采用的训练帧的要求,从理论上推导了不计循环前缀(CP)能量损失的条件下,SC-FDE系统采用LS方法估计信道的性能界.文中指出,Newmann序列适合作为SC-FDE系统频域LS信道估计的训练帧.理论分析和仿真结果都表明,采用Newmann序列可以达到LS信道估计的性能界. |
| 关 键 词： | 单载波频域均衡 辅助数据 最小二乘算法 信道估计 训练帧 |
| 文章编号： | 1009-5896（2007）04-0954-05 |
| 收稿时间： | 2005-08-29 |
| 修稿时间： | 2006-03-27 |
On the LS Channel Estimation of SC-FDE Systems Based on Data Aided Method |
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| Du Yan,Zhang Yong-sheng,Wang Xin-zheng.On the LS Channel Estimation of SC-FDE Systems Based on Data Aided Method[J].Journal of Electronics & Information Technology,2007,29(4):954-958. | |
| Authors: | Du Yan Zhang Yong-sheng Wang Xin-zheng |
| Affiliation: | School of Information Science and Engineering, Shandong University, Ji’nan 250100, China;Institute of Image Communication and Information Processing, Shanghai Jiaotong University, Shanghai 200240, China; National Communication Research Laboratory, Southeast University, Nanjing 210096, China |
| Abstract: | In this paper, the requirements of training sequence for channel estimation in SC-FDE systems are discussed, and the customarily used training sequence for channel estimation in OFDM systems can not be used in SC-FDE systems directly is pointed out. By analyzing, it is concluded that Newmann sequence is very suitable for SC-FDE systems. Without considering the energy lost of CP, the LS estimation performance bound is given. Theoretical analysis and simulation results show that this bound can be achieved by using Newmann sequence. |
| Keywords: | Single Carrier-Frequency Domain Equalizer (SC-FDE) Data-aided Least Square (LS) Channel estimation Training sequence |
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