Design of Analog Modulation System Based on LabVIEW Language

With the infinite expansion of the field of radio electronics, the transmission of information has become an important part of human life. Modulation and demodulation are indispensable in the transmission of information. This paper introduces the design of a simulation modulation system using LabVIEW language. Amplitude modulation and frequency modulation are realized using sine wave as carrier. The above two kinds of analog modulation are realized using LabVIEW language, and each system is managed by program to generate an interface suitable for users. The hierarchical and modular design scheme and the simulated modulation system designed by virtual instrument technology have the advantages of directness, operability and convenient adjustment of parameters, which are suitable for the experimental teaching in colleges and universities.