基于软件无线电模块的IEEE 802.11a接收机同步单元实验设计

Experimental Design of an IEEE 802.11a Receiver Synchronization Unit Based on a Software-Defined Radio Module

  • 摘要: 针对“新工科”建设对大学生实践能力培养的要求,在通信原理实验教学中提出基于软件无线电模块的IEEE 802.11a接收机正交频分复用(OFDM)同步算法教学实验,并给出帧同步、符号同步和频率同步的实验原理。在MATLAB开发环境下,进行OFDM同步单元程序设计和软件无线电模块PLUTO配置。从而,利用PLUTO完成通带信号收发,并进行同步单元功能验证。学生通过该实验,能更好地掌握通信原理有关同步的理论知识,提升工程实践能力。

     

    Abstract: In response to the requirements of the “new engineering” discipline construction for the cultivation of college students’ practical abilities, a teaching experiment on orthogonal frequency division multiplexing (OFDM) synchronization algorithm in an IEEE 802.11a receiver based on a software-defined radio module is proposed in the communication principle experimental teaching. The experimental principles of frame synchronization, symbol synchronization, and frequency synchronization are presented. In the MATLAB development environment, the OFDM synchronization unit is designed and the software-defined radio module PLUTO is configured. Thus, the passband signal is transmitted and received using the PLUTO, and the functions of the synchronization unit are verified. Through this experiment, students can better grasp the theoretical knowledge of synchronization related to communication principle and enhance their engineering practical abilities.

     

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