TIME DOMAIN ELECTROMAGNETIC INTERFERENCE MONITORING METHOD AND SYSTEM Russian patent published in 2014 - IPC G01R29/08 

FIELD: radio engineering, communication.

SUBSTANCE: group of inventions relates to an electromagnetic interference monitoring method and system. The method of monitoring electromagnetic interference is characterised by that it involves recording and generating a plurality of time domain waveforms and a plurality of scatter plots; storing the plurality of recorded and generated time domain waveforms and scatter plots; applying a fast Fourier transform (FFT) to each of the stored time domain waveforms as it is received thereby to produce FFT results; storing the FFT results in a database; generating a statistically representative spectrograph or spectrogram in the frequency domain based on the stored FFT results and scatter plots or data associated with the scatter plots, combining constituent FFT of the statistically representative spectrogram in such a manner as to emulate a spectrum that is produced by an electromagnetic interference (EMI) receiver or spectrum analyser; and combining results from a number of iterations of this process to produce an EMI spectrum that is statistically equivalent to an actual EMI spectrum associated with a signal source under examination. A system which carries out said method is also disclosed.

EFFECT: wider frequency band.

17 cl, 4 dwg