基于LabVIEW的通信系统调制方式分析  

Analysis of Modulation Mode in Communication Systems Based on LabVIEW

作　　者：李馨悦 LI Xinyue(School of Telecommunications Engineering,Xidian University,Shaanxi 710126,China)

机构地区：[1]西安电子科技大学通信工程学院,陕西710126

出　　处：《电子技术（上海）》2024年第9期22-23,共2页Electronic Technology

摘　　要：阐述利用LabVIEW设计SSB、VSB调制解调系统的原理,通过前面板能够清晰地观察各种波形,通过对比DSB、SSB、VSB的频谱图,能够很好地理解SSB、VSB调制的原理,时域波形能够将抽象的公式形象化。通过观察解调后的信号是否失真,能够理解相干解调的原理及过程。This paper describes principle of SSB and VSB modulation and demodulation system designed by LabVIEW. Various waveforms can be clearly observed through the front panel. By comparing the spectrograms of DSB, SSB, and VSB, the principles of SSB and VSB modulation can be well understood. The time-domain waveforms can visualize abstract formulas. The principle and process of coherent demodulation can be understood by observing whether the signal after demodulation is distorted.

关 键 词：通信系统 LABVIEW SSB VSB 滤波器 FFT 

分 类 号：TN911[电子电信—通信与信息系统] TP391.7[电子电信—信息与通信工程]