| 频选快衰落信道的Turbo均衡算法 |
| |
| 引用本文： | 彭岳星,王维新,刘陈,吴镇扬. 频选快衰落信道的Turbo均衡算法[J]. 电子学报, 2003, 31(4): 498-501 |
| |
| 作者姓名： | 彭岳星 王维新 刘陈 吴镇扬 |
| |
| 作者单位： | 东南大学无线电工程系,江苏南京 210096 |
| |
| 基金项目： | 国家 8 63计划资助项目 (No 2 0 0 1AA1 2 30 1 5) |
| |
| 摘 要： | 针对频选快衰落信道,本文提出卡尔曼滤波信道跟踪、软输出判决反馈均衡及软输入软输出信道解码迭代处理的Turbo均衡算法以充分利用已获得的信息,实现信道估计、信道均衡与信道解码的迭代更新,并克服传统判决反馈均衡器误差传播的缺陷.仿真表明,本算法能有效地跟踪快衰落信道,经两次迭代就可获得较为满意的码间干扰消除效果.
|
| 关 键 词： | 码间干扰 判决反馈均衡 卡尔曼滤波 信道估计 信道解码 |
| 文章编号： | 0372-2112(2003)04-0498-04 |
| 收稿时间： | 2002-07-10 |
Turbo Equalization with Frequency-Selective Fast-Fading Channel Tracing |
| |
| PENG Yue-xing,WANG Wei-xin,LIU Chen,WU Zhen-yang. Turbo Equalization with Frequency-Selective Fast-Fading Channel Tracing[J]. Acta Electronica Sinica, 2003, 31(4): 498-501 |
| |
| Authors: | PENG Yue-xing WANG Wei-xin LIU Chen WU Zhen-yang |
| |
| Affiliation: | Department of Radio Engineering,Southeast University,Nanjing,jiangsu 210096,China |
| |
| Abstract: | This paper proposes a Turbo equalization algorithm,which consists of Kalman Filter channel tracing and soft-output decision-feedback equalization (DFE) and soft-input soft-output channel decoding,to realize iterative channel estimation,channel equalization and channel decoding for frequency-selective fast-fading channels.The simulations show the proposed algorithm can efficiently trace the fast-fading channel and reduce greatly the inter-symbol interference (ISI) after two iterations. |
| |
| Keywords: | ISI DFE Kalman filter channel estimation channel decoding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子学报》浏览原始摘要信息 |
|
点击此处可从《电子学报》下载免费的PDF全文 |
