摘要 |
<p>A method for remotely detecting electromagnetic interference on a data transmission line of a communication network, in particular for electromagnetic interference caused by a power supply unit located at a client site, said power supply unit comprising a switching converter, comprising:
- measuring at a client site a noise power spectrum on said data transmission line as a function of frequency, for a predetermined frequency range, said noise being present when said data transmission line is not carrying a data signal;
- forwarding said measured noise power spectrum to a remote computing means at a network operator's site;
- determining periodicities in said measured power spectrum by said remote computing means;
- determining the switching frequency of said power supply unit by said remote computing means, based on periodicities in said power spectrum; and remote computing means.
The method is based on REIN: Repetitive Electrical Impulse Noise detection.</p> |