DefinePK

Abstract

In this work, the asynchronous impulsive noise present in electric lines is characterized. This noise is used as communications media -PLC- which is stochastic by nature and turns detection into a complex matter. In first place, it is determined how to carry out the detection of aperiodical noise and the conditions in which it must be detected and the measuring environment, the selection of linear and non-linear loads and the measuring equipment are also discussed. The algorithms used to process the information are also implemented. The detected impulsive noises are Burst type since they are the most critical in an electric line communication system. Said noises were predicted using statistical processes and characterized using the Middleton model. A proposal was stated to detected aperiodic noise and, hence, a testing system was implemented in a household with several appliances in different states such as connection, disconnection, turn on, turn off, etc. The results are favorable and two types of aperiodic noise were found: type 1, whose first impulse is high but is diluted over time and the Burst type that corresponds to an oscillation with a specific frequency which is maintained during a period of time as indicated in the classification of aperiodic noise.