A Study On Wideband Spectrum Monitoring Using NI USRP

Spectrum monitoring and signal analysis have various application areas, both civilian and defense. Spectrum monitoring is the bandwidth surveillance which is the study of a target signal group's frequency components which could be monitored in time as well as frequency varying fields. In this project we are implementing wide band spectrum monitoring using NI USRP Rio, LabVIEW. This programming language is often called ‘G’. Thanks to the advent of SDRs, there has been a tremendous leap in wireless communication. All the components that were previously implemented in complex hardware can be implemented using software. They are flexible and go beyond the ‘limited spectrum’ assumptions of previous radio systems designs. Spectrum monitor is an device that allows the user to get an idea of signals that exist in that spectral area and also can notice if any other frequencies are present. Here we are limiting ourselves to observe the FFT (Fast Fourier Transform) power spectrum. In presence of a new frequency, the FFT power spectrum shows deviation from its original quite form.