alexa Adaptive IIR Notch Filter Design For Cancellation of P
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
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Special Issue Article

Adaptive IIR Notch Filter Design For Cancellation of Periodic Impulsive Noise in OFDM Based Power Line Communications

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This paper presents a simple and cost effective method to remove the periodic impulsive noise in power-line communications (PLC) system. In the real PLC environment, some electrical appliances will produce impulsive noise at a fixed frequency with the power spectral density (PSD) usually exceeding that of the received signals. This type of impulsive noise is the periodic impulsive noise, and it usually remains stationary over periods of minutes or even for hours. This paper deals with a simple and effective approach to remove the periodic impulsive noise before the synchronization of PLC receiver. The proposed algorithm is employed to detect the periodic impulsive noise and then suppresses the periodic impulsive noise with an adaptive infinite impulse response (IIR) notch filter before the synchronization of the system.


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