Abstract
This paper describes analysis of impulse noise generated by small household appliances. Furthermore we propose a new model of impulse noise based on the averaged power spectrum and the random phase generation with various phase distributions. The Gaussian, Weibull and Log-normal phase distributions were used to generate random phase. As a result of this approach, new impulses appear – they are different in the time domain but in the frequency domain new impulses have the desired power spectrum and the randomly generated phase.
Highlights
The digital subscriber lines technology is one of the most widely used technology for the Internet connection and the multimedia services to the household appliances in the Czech Republic
It was proved that impulse noise is a random process and power spectral density (PSD) is possible to make as a probability of estimations of so-called pseudo PSD [2]
Impulse noise negatively affects services provided on xDSL technology for example IPTV or Voice over IP (VoIP)
Summary
The digital subscriber lines (xDSL) technology is one of the most widely used technology for the Internet connection and the multimedia services to the household appliances in the Czech Republic. All the transmitted services are named as “Triple play” which is composed of Voice over IP (VoIP), Data and IPTV (TV over IP protocol). Services transmitted in xDSL systems are influenced by different kinds of disturbances. The most common disturbance is mutual interference of signals from neighboring pairs within one cable – so-called farend crosstalk (FEXT) and near-end crosstalk (). Other disturbances are the Radio-frequency interference (RFI), background noise and impulse noise. All of these types of disturbances have a negative impact on the quality of transmitted services. IPTV and VoIP are very sensitive to the impulse noise, more in [11]. The aim of this paper is to analyse and model the impulse noise generated by household appliances
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