| 分布式MIMO-OFDM系统的同步捕获算法 |
| |
| 引用本文： | 许魁,沈越泓.分布式MIMO-OFDM系统的同步捕获算法[J].电子与信息学报,2008,30(9):2207-2210. |
| |
| 作者姓名： | 许魁 沈越泓 |
| |
| 作者单位： | 解放军理工大学通信工程学院,南京,210007 |
| |
| 摘 要： | 该文提出了一种分布式多输入多输出正交频分复用(MIMO-OFDM)系统初始信号检测和同步捕获算法。该算法设计了导频符号，采用谱分析方法实现可靠的初始信号检测、粗定时和粗频偏估计，并在快速傅里叶变换(FFT)之后进行精确地频偏和定时估计。仿真结果表明，该算法在低信噪比多径瑞利信道条件下具有很好的性能。
|
| 关 键 词： | 分布式多输入多输出正交频分复用 谱分析 信号检测 同步捕获 |
| 收稿时间： | 2007-2-26 |
| 修稿时间： | 2007-9-20 |
Synchronization Acquisition Algorithm for Distributed MIMO-OFDM Systems |
| |
| Xu Kui,Shen Yue-hong.Synchronization Acquisition Algorithm for Distributed MIMO-OFDM Systems[J].Journal of Electronics & Information Technology,2008,30(9):2207-2210. |
| |
| Authors: | Xu Kui Shen Yue-hong |
| |
| Affiliation: | Institute of Communications Engineering, PLAUST, Nanjing 210007, China |
| |
| Abstract: | A signal detection and synchronization acquisition scheme is proposed for distributed Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system. Reliable signal detection scheme and coarse time and coarse frequency estimation based on spectrum analysis method can be obtained by designing pilot symbols. And then the pilot symbols are used for POST-Fast Fourier Transform (FFT) precisely frequency and time estimation. The simulation results show that the new algorithm works well at low SNR over wireless multipath channel. |
| |
| Keywords: | Distributed MIMO-OFDM Spectrum analysis Signal detection Synchronization acquisition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
