基于LabVIEW的2ASK通信系统程序设计  

2ASK communication system programming based on LabVIEW

作　　者：孙野[1] 段新文[1] 

机构地区：[1]青海师范大学计算机学院,青海西宁810000

出　　处：《现代电子技术》2013年第1期89-90,98,共3页Modern Electronics Technique

摘　　要：研究ASK信号的设计方法及计算机仿真和结果,通过使用LabVIEW语言对2ASK通信系统进行调制和解调,调制方法为输入序列与载波相乘,再将调制出的波形通过信道、低通滤波器滤波后采用非相干解调的解调方式实现二进制幅移键控系统的解调,形成所要的波形。并通过改变输入序列的输入值来得到相应波形和功率谱图形的变化。The paper studies a design method of ASK signal and simulation results with computer. The 2ASK commt,nica-tion system is modulaled and demodulated using LabVIEW language. The basic idea is that the waveform is obtained with the in-put sequence multiplied by carrier. And the modulated waveform is filtered through the channel and lowpass filter. The demodula-tion of binary amplitude shift keying is realized hy using of non-coherent demodulation, and thus the required waveform is ob-tained. And by changing the input sequeuce of input value, the corresponding waveform and the variation of spectrum graphics are obtained.

关 键 词：幅移键控 失真 2ASK通信系统 LABVIEW 

分 类 号：TN914-34[电子电信—通信与信息系统]