| OFDM无线局域网接收机中I/Q不平衡性补偿研究 |
| |
| 引用本文： | 周亦敏,余晓亮. OFDM无线局域网接收机中I/Q不平衡性补偿研究[J]. 计算机工程与设计, 2010, 31(10) |
| |
| 作者姓名： | 周亦敏 余晓亮 |
| |
| 作者单位： | 上海理工大学,光电信息与计算机工程学院,上海,200090 |
| |
| 基金项目： | 国家863高技术研究发展计划基金 |
| |
| 摘 要： | 为了克服OFDM系统中高阶正交幅度调制中的RF非理想性,研究了I/Q不平衡效应与解决方法,提出了一种基于IEEE802.11a标准,在OFDM系统零中频接收机上的I/Q不平衡补偿电路,并给出取代传统高阶均衡的低复杂度时域补偿算法.通过Matlab对IEEE802.11a收发端包含通道模型在内的整体系统进行了模拟.仿真结果表明,该设计有助于形成一个非常有效和易于执行OFDM无线局域网接收机.
|
| 关 键 词： | 无线局域网 正交频分复用 零中频接收机 I/Q不平衡 时域估计和补偿 |
Implementation of I/Q imbalance compensation in OFDM WLAN receivers |
| |
| ZHOU Yi-min,YU Xiao-liang. Implementation of I/Q imbalance compensation in OFDM WLAN receivers[J]. Computer Engineering and Design, 2010, 31(10) |
| |
| Authors: | ZHOU Yi-min YU Xiao-liang |
| |
| Affiliation: | ZHOU Yi-min,YU Xiao-liang(School of Optical-Electrical , Computer Engineering,University of Shanghai for Science , Technology,Shanghai 200090,China) |
| |
| Abstract: | To advance the non-ideality of RF in the OFDM high-order quadrature amplitude modulation(QAM),I/Q imbalance and so-lutions are studied.An I/Q imbalance compensation circuit in IEEE802.11a baseband OFDM zero intermediate frequency(zero-IF) re-ceiver is proposed.A low complexity time-domain compensation algorithm is used to replace the traditional high-order equalizer.Matlab is used to simulate the whole transceiver including the channel model.Results of the simulation indicated the proposed methods could con... |
| |
| Keywords: | WLAN OFDM Zero-IF I/Q imbalance time-domain estimation and compensation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
