基于LabVIEW的直接扩频通信实验系统的设计  

Design of experimental system for direct sequence spread spectrum communication based on LabVIEW

作　　者：贾勇[1] 胡炜琳 晏超 钟晓玲[1] 郭勇[1] JIA Yong;HU Weilin;YAN Chao;ZHONG Xiaoling;GUO Yong(College of Information Science and Technology,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学信息科学与技术学院,四川成都610059

出　　处：《实验技术与管理》2019年第3期165-169,174,共6页Experimental Technology and Management

基　　金：国家自然科学基金项目(61501062;41574136)

摘　　要：为研究直接序列扩频通信的技术特点,设计了一种基于LabVIEW的直接扩频通信实验系统。该系统包括信号产生、扩频调制、解扩解调、信号还原的全过程,并加入几种在实际通信中需要考虑的信道干扰进行仿真。该实验系统直观地展示了直接扩频通信的结构特征,其误码率和占用带宽的测试分析也清晰体现了系统在抗干扰性和保密性上的技术优势,可用于直接扩频通信的实验教学和开发研究。In order to study the technical characteristics of the direct sequence spread spectrum communication,an experimental system for such communication based on LabVIEW is designed. This system includes the whole process of the signal generation,spread spectrum modulation,de-spread demodulation and signal restoration. Several kinds of channel interferences which need to be considered in practical communication are added to simulate the system. This experimental system intuitively demonstrates the structure characteristics of the direct spread spectrum communication. The test and analysis of the bit error rate and bandwidth occupied by the experimental system also clearly reflects the technical advantages of the system in anti-interference and confidentiality,which can be used in experimental teaching and D&R of such communication.

关 键 词：通信系统 直接序列扩频 实验教学 LABVIEW 

分 类 号：TN914.42[电子电信—通信与信息系统] TP391.9[电子电信—信息与通信工程]