| OFDM系统PAPR减小技术分析 |
| |
| 引用本文： | 李万臣,谷志刚,施齐云. OFDM系统PAPR减小技术分析[J]. 现代电子技术, 2007, 30(21): 41-42,47 |
| |
| 作者姓名： | 李万臣 谷志刚 施齐云 |
| |
| 作者单位： | 1. 哈尔滨工程大学,黑龙江,哈尔滨,150001
2. 空军大连通信士官学校,辽宁,大连,116600 |
| |
| 摘 要： | OFDM技术继CDMA技术之后,将成为无线宽带接入和4G移动通信的核心技术。然而,OFDM的峰均功率比较高是阻碍其发展和应用的难点。分析了OFDM系统出现过高的峰均功率比的原因和PAPR对系统通信质量的损害,概括了常用的几种抑制峰均功率比的思路,提出一种有效抑制峰均功率比的方法——相位扰动法,并给出了其仿真结果和讨论。该相位扰动法使OFDM信号的峰均功率比得到有效抑制,且硬件上容易实现。
|
| 关 键 词： | 正交频分复用 相位扰动算法 信号预畸变 |
| 文章编号： | 1004-373X（2007）21-041-02 |
| 收稿时间： | 2007-06-22 |
| 修稿时间： | 2007-06-22 |
Performance Analysis of PAPR Reduction Technique for OFDM Systems |
| |
| LI Wanchen,GU Zhigang,SHI Qiyun. Performance Analysis of PAPR Reduction Technique for OFDM Systems[J]. Modern Electronic Technique, 2007, 30(21): 41-42,47 |
| |
| Authors: | LI Wanchen GU Zhigang SHI Qiyun |
| |
| Affiliation: | 1. H arbin Engineering University , H arbin, 150001, China; 2. Air Force Dalian Communication Sergeant School, Dalian, 116600, China |
| |
| Abstract: | OFDM technology is slated for wireless broadband access and the kernel technology of 4G mobile communication in the train of CDMA technology. Though, the higher peak - to - average power ratio in OFDM is the difficulty that encumbrance that development and application. In the paper,the cause of peak - to - average power ratio in OFDM systems and the damage of PAPR to the system is analysed. At the same time,the methods to reduce the PAPR are generalized. At the last,a new effective method the phase disturb arithmetic and its simulation result is provided. The phase disturb arithmetic reduced the PAPR in OFDM effectively,and it is easy to realize in real system. |
| |
| Keywords: | PAPR |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
