正交频分复用基带系统仿真及FPGA实现  

Simulation and Implementation of FPGA for OFDM Base Band System

作　　者：吴虹[1,2] 李子彧[1,2] 赵迎新[1,2] 陈坤[1,2] 焦鹏[1,2] 

机构地区：[1]南开大学电子信息与光学工程学院,天津300071 [2]南开大学天津市信息光子材料与技术重点实验室,天津300071

出　　处：《北京理工大学学报》2015年第3期310-315,共6页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(60872026);天津市应用基础与前沿技术研究计划项目(13JCZDJC26000;13JCQNJC01000);国家教育部高等学校博士学科点专项科研基金资助课题(20110031110028)

摘　　要：基于IEEE802.15.3a提案及ECMA-368标准建立多频带正交频分复用超宽带基带系统,主要包括信道编解码、交织和解交织、数字调制与解调、OFDM信号的组帧与解帧、跳频和解跳频.针对该系统提出了一种采用数字基带跳频和解跳频的多频带实现方案,并对系统的同步问题进行了相关研究.在Matlab仿真平台上搭建系统并验证系统可行性,在此基础上使用FPGA硬件实现该系统并进行性能测试.仿真结果表明,建立的多频带OFDM超宽带基带系统硬件平台能够很好地完成数据的发送与接收,并具有良好的传输性能,为系统中其它关键技术的研究提供了硬件实验平台.Based on the IEEE802.15.3a proposal and ECMA-368 standard,the multi-band orthogonal frequency division multiplexing ultra wideband（MB-OFDM-UWB）baseband system was established including channel coding and decoding,interleaver and deinterleaver,digital modulation and demodulation,frame structure constitution,frequency hopping and dehopping.A technique of digital baseband frequency hopping and dehopping was proposed to realize multi-band modulation for this system.Synchronization technologies for the system were also researched.First the system designed was built in the Matlab simulation platform and verified feasible.On this basis,using FPGA development board,the hardware system was implemented.Testing the performance of this system is the final step.The simulation results indicate that the system designed has a good performance of transmit and receive data.Its also a hardware experimental platform for the research on other key technologies.

关 键 词：正交频分复用 基带跳频和解跳频 同步 现场可编程门阵列 

分 类 号：TN914[电子电信—通信与信息系统]