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Deployment of wireless communications equipment in electricity substation for monitoring, control and surveillance applications offers significant potential benefits over wired communications in terms of convenience, flexibility and cost. Typically wireless transceiver designs are based on the assumption that noise is Additive, White and Gaussian (AWG). These transceivers perform fine in normal environments (where optimum reception can be achieved with Gaussian channel assumption) but their applicability in noise intensive electricity substation environment is not risk free and needs thorough investigation. Partial discharges and sferic radiation (from fault and switching transients) are major sources of impulsive noise, in electricity transmission substations and if the risks of deploying wireless communications equipment are to be properly assessed the impact of such impulsive processes requires thorough evaluation.
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