用DSP实现基于802.16a的OFDM基带调制解调  

Implementation of OFDM Baseband Modulation andDemodulation Based on 802.16a by Using DSP

作　　者：王昕[1] 朱琦[1] 酆广增[1] 

机构地区：[1]南京邮电学院通信工程系,江苏南京210003

出　　处：《军事通信技术》2005年第S1期24-27,共4页Journal of Military Communications Technology

基　　金：国家高技术研究发展计划(863计划)资助项目(2002AA123046)

摘　　要：正交频分复用(OFDM)技术是当今高速无线通信领域中的研究与应用热点,它具有抗多径衰落、频谱利用率高、采用自适应调制等优点,被普遍认为是宽带无线接入和第四代移动通信系统中的关键技术之一。文中研究了基于802.16a的OFDM技术,利用TMS320C6201实现了其基带调制解调,并对软件模块进行了优化,最高数据传输速率可达1.32Mbit/s。OFDM (Orthogonal Frequency Division Multiplexing) is a popular topic of research and application in high speed wireless communication field, and generally regarded as one of the core technologies in the 4th mobile communication system due to its good performance against multi-path fading, high frequency efficiency and self-adaptation modulation. In this paper, the OFDM technology was studied based on 802.16a, the baseband modulation and demodulation realized by using TMS320C6201, and the software module optimized, with the bit rate up to 1.32 Mbit/s.

关 键 词：正交频分复用 数字信号处理 调制解调 

分 类 号：TN919.3[电子电信—通信与信息系统]