Split frequency band signal digitizer and method

Details Split frequency band signal digitizer and method Split frequency band signal digitizer and method

H - Electricity

03

M

H03M 1/12 (2006.01) H04B 1/26 (2006.01) H04L 1/06 (2006.01) H04L 1/22 (2006.01) H04L 25/14 (2006.01) H04L 27/26 (2006.01) H04Q 7/30 (2006.01)

Patent

CA 2181809

A split frequency band signal digitizer (10) includes a first mixer (18) for translating a split-band signal (200) about a multiple of the sampling frequency. The split-band signal so translated is then communicated to an analog-to-digital converter (26). The digitized signal is then analyzed to recover an original portion of the split-band signal and a second portion of the signal aliased into a single Nyquist band.

Un numériseur (10) de signaux de bandes de fréquence subdivisées comprend un premier mélangeur (18) qui transpose les signaux (200) des bandes subdivisées à un multiple de la fréquence d'échantillonnage. Les signaux des bandes subdivisées ainsi transposés sont transmis à un convertisseur analogique-numérique (26). Les signaux numérisés sont analysés pour récupérer une partie originelle des signaux des bandes subdivisées et une deuxième partie des signaux est polarisée en une seule bande de Nyquist.

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