THE MEASUREMENT OF SPECTRUM OCCUPANCY IN RADIO MONITORING USING FFT

摘要

The present invention can scan a wide frequency range in real time at a high resolution, which was not possible to perform a conventional spectrum analysis, and a method using a spectrum analyzer is used as a conventional method of occupying radio spectrum, and sweeps the tuning frequency. While using a narrowband bandpass filter, the present invention performs an FFT program on a plurality of samples digitized over time, and measures the magnitude of each frequency component. Therefore, it is easy to implement a very high frequency resolution by adjusting the number of signal samples, and it is easy to adjust measurement related parameters using an FFT program. The present invention has a high frequency sweep speed (20msec / 500kHz, frequency resolution: 1kHz) by hardware processing, and configures a GUI (Graphic User Interface) environment using a PC so that the user can easily adjust all the operation operations. .