Cross polarization interference compensating method, and...

H - Electricity – 04 – B

Patent

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H04B 1/12 (2006.01)

Patent

CA 2623431

A cross polarization interference compensating device comprises an error detector (26) for extracting a phase difference between a modulated signal or a signal, of which a self-polarization was subjected to a cross polarization interference compensation, and a normal reception signal of the self- polarization, to output an error signal indicating the phase difference extracted, a phase noise detector (27) for comparing the cross polarization interference compensation signal or the signal, of which the self-polarization was subjected to the cross polarization interference compensation, to extract and output a phase noise difference, a control signal generation unit for generating a control signal corresponding to the phase noise difference, and a phase rotator (18') arranged at the front stage or the rear stage of a cross polarization interference compensator for generating a cross polarization interference compensation signal, to control, when the control signal is inputted thereto, the phase of the cross polarization interference compensation signal in a direction to suppress the phase noise difference.

Un dispositif de compensation d~interférence de polarisation croisée comprend un détecteur d~erreur (26) permettant d~extraire une différence de phase entre un signal modulé ou bien un signal dont une auto-polarisation a fait l~objet d~une compensation d~interférence de polarisation croisée, et un signal de réception normal de l~auto-polarisation, pour générer un signal d~erreur indiquant la différence de phase extraite, un détecteur de bruit de phase (27) permettant de comparer le signal de compensation d~interférence de polarisation croisée ou bien le signal dont l'auto-polarisation a fait l~objet de la compensation d~interférence de polarisation croisée, pour extraire et produire une différence de bruit de phase, une unité de génération de signaux de commande afin de générer un signal de commande correspondant à la différence de bruit de phase, et un rotateur de phase (18~) disposé dans la partie avant ou la partie arrière d~un compensateur d~interférence de polarisation croisée permettant de générer un signal de compensation d~interférence de polarisation croisée, pour commander, lors de l~injection du signal de commande dans celui-ci, la phase du signal de compensation d~interférence de polarisation croisée dans une direction permettant de supprimer la différence de bruit de phase.

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