现代通信系统概论教学改革研究——基于Matlab的OFDM系统

Teaching reform of modern communication system conspectus ——OFDM system with MATLAB

针对本科通信原理课程仅局限在Systemview仿真,学生对模块内部工作原理理解不透彻,以及研究生阶段应掌握现代通信中的一些先进技术,考虑以正交频分复用系统为课程的主线,将数字通信中的卷积编码、维特比卷积译码、交织编码、QPSK数字调制和解调、OFDM技术及其IFFT的实现各个知识点结合起来.采用Matlab仿真完成OFDM系统中各功能模块及系统的整体设计,从而提高学生理解并能完成先进通信系统仿真及设计方面的能力.

Students usually do experiments with Systemview at undergraduate course of communication principle,so they can′t have a thorough understanding to modules.Graduate students should master some advanced technology in modern communication.So aim at the orthogonal frequency division multiplexing(OFDM)system in digital communication which is composed by convolutional coding,vitby convolutional decoding,interleave coding,QPSK modulation,QPSK demodulation and OFDM principle.Simulating the OFDM system and every mould with Matlab can improve the students'understanding and ability to complete the simulation and design of advanced communication system.