| 基于MATLAB的OFDM系统仿真及性能分析 |
| |
| 引用本文： | 吕爱琴,田玉敏,朱明华.基于MATLAB的OFDM系统仿真及性能分析[J].计算机仿真,2005,22(10):164-168. |
| |
| 作者姓名： | 吕爱琴 田玉敏 朱明华 |
| |
| 作者单位： | 西安电子科技大学计算机学院,陕西,西安710071;中国科学院上海微系统与信息技术研究所,上海200050 |
| |
| 摘 要： | 正交频分复用（OFDM）是第四代移动通信的核心技术.该文首先简要介绍了OFDM基本原理,重点研究了理想同步情况下,保护时隙（CP）和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响.在给出OFDM系统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序.最后给出在不同的信道条件下,保护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论.
|
| 关 键 词： | 正交频分复用 仿真 循环前缀 信道估计 |
| 文章编号： | 1006-9348(2005)10-0164-05 |
| 修稿时间： | 2004年6月15日 |
MATLAB Simulation and Performance Analysis of OFDM System |
| |
| LU Ai-qin,TIAN Yu-min,ZHU Ming-hua.MATLAB Simulation and Performance Analysis of OFDM System[J].Computer Simulation,2005,22(10):164-168. |
| |
| Authors: | LU Ai-qin TIAN Yu-min ZHU Ming-hua |
| |
| Affiliation: | LU Ai-qin~1,TIAN Yu-min~1,ZHU Ming-hua~2 |
| |
| Abstract: | OFDM is the key technology of 4G in the field of mobile communication. In this article OFDM basic principle is briefly introduced.Then,the influence of CP and different channel estimation on the system performance is emphatically analyzed respectively in Gauss and Rayleigh fading channels in the condition of ideal synchronization.Besides,based on the given system model OFDM system is computer simulated with MATLAB language and the referential design procedure is given. Finally,the BER curves of CP and channel estimation are given and compared.The conclusion is satisfactory. |
| |
| Keywords: | OFDM Simulation CP Channel estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
