| FPGA软件无线电平台实现OFDM关键问题的研究 |
| |
| 引用本文： | 刘留,陶成,戚小玉,邱佳慧.FPGA软件无线电平台实现OFDM关键问题的研究[J].北方交通大学学报,2009(5):1-6. |
| |
| 作者姓名： | 刘留 陶成 戚小玉 邱佳慧 |
| |
| 作者单位： | 北京交通大学电子信息工程学院,北京100044 |
| |
| 基金项目： | 国家“863计划”重点项目资助（2009AA011800） |
| |
| 摘 要： | 在软件无线电平台上快速实现原型样机，已成为评价通信新技术的重要方法．本文以基于FPGA的软件无线电平台实现OFDM收发信机为例，分析了浮点数与定点数仿真的基本方法及原型样机的设计流程，针对802．11a突发分组OFDM收发信机中的帧同步、符号定时和信道估计等在FPGA中的实现问题，提出了适合于硬件实现的优化算法，节省了硬件资源．最后，在验证平台上实现了全数字OFDM收发信机．测试结果表明，新方法设计合理，收发信机在中频能稳定的无误帧传输．
|
| 关 键 词： | 正交频分复用(OFDM) FPGA 定点仿真 算法优化 |
Research on Key Issues of OFDM Transceiver Based on FPGA |
| |
| LIU Liu,TAO Cheng,QI Xiaoyu,QIU Jiahui.Research on Key Issues of OFDM Transceiver Based on FPGA[J].Journal of Northern Jiaotong University,2009(5):1-6. |
| |
| Authors: | LIU Liu TAO Cheng QI Xiaoyu QIU Jiahui |
| |
| Institution: | (School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China) |
| |
| Abstract: | Fast verification of the prototype design upon software radio platform has become one of the most important contents in communication assessment. This paper introduces the fundamental method of float-point and fixed-point simulation and rapid prototype design flow. Then some key issues such as OFDM frame synchronization, symbol timing, channel estimation, and so on are optimized, which significantly reduced the usage of hardware resources. The validness is illustrated here with experimental results from the implementation of OFDM burst frame transceiver. |
| |
| Keywords: | orthogonal frequency division multiplexing （ OFD M ） FPGA fixed-point simulation algorithm optimization |
| 本文献已被 维普 等数据库收录！ |
