CAJ | 학술논문

针对无线电通信中的信号的信源编解码、信道编解码、OFDM和使用直接序列扩频的方法进行扩频通信等相关的关键技术和如何将相关技术进行有效地运用在战术宽带波形的设计进行研究，并与在通信系统建模领域里常用的的MATLAB/Simulink软件仿真技术相结合，实现了一个基于无线通信宽带波形的通信系统，并实现了对该系统后期的OFDM处理。主要创新点体现在使用了模块化的思想来搭建Simulink环境下的仿真系统，以及在仿真中使用OFDM实现了该波形，最后对接收端的信号恢复情况进行检验，取得了良好的效果。
침대무선전통신중적신호적신원편해마、신도편해마、OFDM화사용직접서렬확빈적방법진행확빈통신등상관적관건기술화여하장상관기술진행유효지운용재전술관대파형적설계진행연구，병여재통신계통건모영역리상용적적MATLAB/Simulink연건방진기술상결합，실현료일개기우무선통신관대파형적통신계통，병실현료대해계통후기적OFDM처리。주요창신점체현재사용료모괴화적사상래탑건Simulink배경하적방진계통，이급재방진중사용OFDM실현료해파형，최후대접수단적신호회복정황진행검험，취득료량호적효과。
In this paper, firstly the key technology of radio which includes source encode and decode, channel encode and decode, OFDM, and the methods of spread spectrum communication with direct sequence will be researched. And then, how to do the simulation of the technology above will be also researched here. Consequently, a simulation system has been built in the MATLAB/simulink, a software producture well-known in the domain of communication, which can product a broadband waveform based on software radio. The system is improved by OFDM then. Absolutely, the new idea reflects that OFDM and simulink software is serviced for tactics broadband communication. The result of the signal waveform recovered from the receiving part of the system proves that the system can work normally and successfully.