Assessing a network

H - Electricity – 04 – B

Patent

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H04B 10/08 (2006.01)

Patent

CA 2589792

The present invention relates to a method of assessing a network, in particular a network having a main line and a plurality of branch lines. The method includes the steps of: (i) introducing test signals into the main line, the main line being coupled to the branch lines; (ii) imposing a modulation on test signals which propagate along the branch line and, (iii) monitoring test signals returned along the main line. The imposed phase modualtion is detected interferometrically such that the test sgnals from the designated branch line can be distinguished with respect to the signals returned from other branch lines.

L'invention conserve un procédé permettant d'évaluer un réseau comprenant une ligne principale et une pluralité de lignes secondaires. Les étapes de ce procédé consistent à: (i) introduire des signaux d'essai dans la ligne principale, cette ligne principale étant couplée à des lignes secondaires selon une configuration à embranchements, de manière que les signaux d'essai se propagent le long des lignes secondaires; (ii) appliquer une modulation aux signaux d'essai qui se propagent le long de la ligne secondaire et, (iii) contrôler les signaux d'essai renvoyés le long de la ligne principale. La modulation de phase appliquée est détectée par interférométrie de telle manière que les signaux d'essai provenant des lignes secondaires spécifiées peuvent être distingués des signaux renvoyés depuis d'autres lignes secondaires.

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