Device and method for the suppression of pulsed wireless...

G - Physics – 01 – S

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G01S 1/04 (2006.01) G01S 19/21 (2010.01) H04B 1/12 (2006.01)

Patent

CA 2439563

The invention relates to a method for suppressing pulsed signals, particularly signals of types DME or TACAN, occurring in the wireless signals received (Ue) by a radio frequency receiver. The reception frequency band of the receiver is divided into frequency sub-bands corresponding to the transmission channels of the pulsed signals. The pulsed signals and the transmission channel of said pulsed signals are detected in the frequency sub-bands. The frequency sub-band containing the detected pulsed signals is filtered during the time that the pulsed signals last in order to eliminate said pulsed signals. The inventive method protects wireless receivers of types GPS or GALILEO from interference by pulsed DME/TACAN-type signals.

L'invention concerne un procédé de suppression de signaux pulsés notamment de type DME ou TACAN présents dans les signaux radioélectriques reçus (Ue) par un récepteur radiofréquences, caractérisé en ce que la bande de fréquences de réception du récepteur est découpée en sous-bandes de fréquences correspondant aux canaux d'émission des signaux pulsés, en ce que l'on détecte la présence des signaux pulsés et le canal d'émission desdits signaux pulsés dans les sous- bandes de fréquences, et en ce que l'on filtre, pendant la durée du signal pulsé, la sous~bande de fréquence comportant les signaux pulsés détectés, pour éliminer lesdits signaux pulsés. Applications : protéction des récepteurs radioélectriques type GPS ou GALILEO contre les perturbateurs radioélectriques de type pulse DME/TACAN.

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