Detecting and measuring interference contained within a...

Details Detecting and measuring interference contained within a... Detecting and measuring interference contained within a...

H - Electricity

04

L

H04L 17/00 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2472319

A method and system for measuring noise and or interference in a communications signal without taking the signal out of service (fig.2). In the present invention the communications signal is converted from an RF signal into IF signal (201). The RF signal is then digitized and stored. The stored signal is processed to determine the interference signal. The interference signal is calculated from an error vector produced by a blind equalizer demodulator (212). The interference signal is extracted and presented to a user (105).

Procédé et système servant à mesurer le bruit et/ou les interférences dans un signal de communication sans annuler ce signal. Ce procédé consiste à convertir le signal de communication d'un signal RF en signal IF (201). Ce signal RF est ensuite numérisé et mémorisé. Le signal mémorisé est traité afin de déterminer le signal d'interférence. Ce dernier est calculé à partir d'un vecteur d'erreur produit par un démodulateur égaliseur aveugle (212). Ce signal d'interférence est extrait et présenté à l'utilisateur (105).

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