| OFDM-UWB系统的自适应联合信道估计算法 | |
| 姜俊 ; 付炜 ; 张盛 ; JIANG Jun ; FU Wei ; ZHANG Sheng | |
| 2010-05-14 ; 2010-05-14 | |
| 关键词 | 正交频分复用 超宽带 信道估计 导频 orthogonal frequency diversion multiplexing(OFDM) ultra-wideband(UWB) channel estimation pilot TN925 |
| 其他题名 | Adaptive Joint Channel Estimation Algorithm for OFDM-UWB Systems |
| 中文摘要 | 提出了一种新的MB-OFDM-UWB自适应联合信道估计算法,该算法首先对基于DFT的信道估计算法进行改进,使其能自适应的调整滤波窗口的大小。然后利用改进后的算法与梳状导频估计相结合。算法的优点在于能根据不同的信道的统计特征,自适应调整滤波器窗口的大小,从而减少了噪声对信道估计的影响,并保留了梳状导频估计能快速跟踪信道变化的特性。仿真结果表明,该算法能很好地适用于UWB室内信道。; In this paper,a new channel estimation method called adaptive joint channel estimation is proposed for OFDM based UWB systems.This algorithm can improved the Discrete Fourier Transform-based channel estimation method first,and cooperated the self-adjust channel estimation method with comb-type pilot algorithm,which can adjust filter window length adaptively based on different channels to reduce the impact of noise on the channel estimation and also keep down the characteristics of comb-type pilot to fast-tracking channel changes.Our simulation results show that the proposed algorithm can suit the indoor UWB channel. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/33583]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 姜俊,付炜,张盛,等. OFDM-UWB系统的自适应联合信道估计算法[J],2010, 2010. |
| APA | 姜俊,付炜,张盛,JIANG Jun,FU Wei,&ZHANG Sheng.(2010).OFDM-UWB系统的自适应联合信道估计算法.. |
| MLA | 姜俊,et al."OFDM-UWB系统的自适应联合信道估计算法".(2010). |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论