Spectrum Analysis System Based On LabVIEW

Spectrum analysis is applied to many scientific research technology range now, like the inside of the radio technology electronic communications systems measurement applications of the electronic information application system navigation radar detection application systems、etc., in addition, because of the impact sound like light waves and xi non-electricity more science and technology is through the so-called energy conversion device to current voltage changes to easily analysis, so the spectrum analysis also plays a very important role in such aspects,as noise、 biological、engine、various vibration、medicine.This article takes the Lab VIEW programming software for the development of the research survey platform, according to the basic principle of signal processing to the signal in time domain, frequency domain analysis in the study of design by using Labview programming a virtual signal generator for signal source.In the frequency domain signal analysis module, the main research completed the amplitude and phase spectrum of the signal analysis、power spectrum analysis、harmonic analysis、 cepstrum analysis、joint time frequency, and analysis the function of the signal time domain analysis, thus the signal has a more complete understanding of the human-computer interaction interface detailed research and analysis of design parameters can be simple and easy to user to select、signal analysis and output.