摘要
文中介绍了宽带网络电台的研究进展和发展趋势。提出了一种宽带网络电台的实现方案,并对其中调制解调、纠错编解码、媒体接入控制、功率放大器等关键技术进行了研究,在分析比较多种方案的基础上确定了基于OFDM、Turbo卷积码、空分TDMA与数字预失真的技术体制。同时给出了电台样机的功能框图、硬件架构设计与软件协议分层模型。
In this paper, the progress of broadband network radio is presented and a realizable scheme provided. Some key technologies are investigated, including modulation/demodulation, forward error correction(FEC), medium access control(MAC) and power amplifier. In the light of analysis and comparison, the technology system based upon OFDM, Turbo convolutional code, STDMA and digital predistortion is determined. Finally, the function block diagram of prototype machine, the modular hardware architecture design and ...
出处
《通信技术》
2008年第5期7-9,15,共4页
Communications Technology
