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| 基于TURBO原理的复杂环境中UWB时变信道的跟踪估计 | |
| 引用本文： | 汪一鸣,滕鹏伟,朱洪波.基于TURBO原理的复杂环境中UWB时变信道的跟踪估计[J].南京邮电大学学报(自然科学版),2006,26(5):6-10. |
| 作者姓名： | 汪一鸣 滕鹏伟 朱洪波 |
| 作者单位： | 1. 南京邮电大学,通信与信息工程学院,江苏,南京,210003;苏州大学,电子信息学院,江苏,苏州,215021 2. 苏州大学,电子信息学院,江苏,苏州,215021 3. 南京邮电大学,通信与信息工程学院,江苏,南京,210003 |
| 摘 要： | 在复杂环境的超宽带通信系统中，信道估计的正确与否直接关系到接收机的性能。首先给出了一种基于Intel模型的时变信道仿真方法，以该超宽带时变信道为研究对象，提出一种基于TURBO原理和连续信道译码、结合训练比特的信道估计方法，能够直接估计本地接收模板，并跟踪信道的时变性。与先估计信道冲激响应，再重构模板信号的方法相比，大大简化了估计的过程。 |
| 关 键 词： | TURBO 原理 时变信道 信道估计 RAKE 接收 |
| 文章编号： | 1673-5439（2006）05-0006-05 |
| 收稿时间： | 2006-06-15 |
| 修稿时间： | 2006-06-15 |
UWB Channel Track and Estimation in the Complicated Environment Based on Turbo Principle |
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| WANG Yi-ming,TENG Peng-wei,ZHU Hong-bo.UWB Channel Track and Estimation in the Complicated Environment Based on Turbo Principle[J].Journal of Nanjing University of Posts and Telecommunications,2006,26(5):6-10. | |
| Authors: | WANG Yi-ming TENG Peng-wei ZHU Hong-bo |
| Institution: | 1. College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2. School of Electronics and Information Engineering, Soochow University, Suzhou 215021, China |
| Abstract: | In the complicated UWB communication system, it is important that how to estimate channels that can influence directly the receiver performance. In this paper, a simple simulation model for the time variance of the UWB channel is proposed first. Then a channel estimate method is presented for the time variance channel, which is based on TURBO principle, continuous decoding algorithm and training sequences. Finally, the simulation results are given. They show that this method can estimate local receiving template directly as well as track time variations of the channel. Compared with the method of estimating channel impulse responses formerly and reconstructing the template single posteriorly, the process is greatly simplified. |
| Keywords: | TURBO principle Time variance channel Channel estimation RAKE receiver |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |