Method and device for control burst noise

Abstract

This invention relates to a method for suppressing burst noises used in receiving sample data series flow x[n], testing and suppressing interference to sample data from burst noises, and the series flowx[n] includes multiple sample data, and n expresses discrete time independent variable, the method includes: comparing the sum of energy of a first k-1 sample data and that of the kth sample data multiplying a first constant with a first critical value, when the sum is greater than the first critical value, then it compares the sum of the energy of the (k-1)th sample data with that of the (k+1)th multiplying a second constant with the second critical value, when the energies of the two are greater than the second critical value, it replaces the kth sample data with the first replacement data and outputs them.

Description

Method and device for suppressing sudden noise technical field The present invention relates to a method for suppressing impulse noise, and more particularly to a method for comparing the energy sum of a plurality of sampled data in a sample stream (sample stream) with a critical value to detect and suppress the impulsive noise. The method and device for generating noise are applicable to various digital communication receivers. Background technique Burst noise consists of one or more pulses with high amplitude (or energy) and short period. Sudden noises can occur, for example, in plumbing fixtures, central heating thermostats, light switches or ignition systems. These sudden noises will interfere with the communication system's decision-making on the transmission symbols, thereby causing the performance of the entire communication system to decline. For example, in the digital terrestrial television (DTT) system, the European terrestrial digital video broadcasting (DVB-...

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