Radar apparatus with pulsed interference suppressor

G - Physics – 01 – S

Patent

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Details

G01S 7/35 (2006.01) G01S 7/36 (2006.01) G01S 13/34 (2006.01)

Patent

CA 2278464

The invention relates to an FMCW type of radar apparatus, provided with a transmitter for the periodic transmission of a transmitter signal, an antenna, a mixer stage, an analog-to-digital converter, a fourier transformer and an interference suppressor for suppressing pulsed interference signals. During the presence of a pulsed interference signals, the values measured at the output of the analog-to-digital converter are substituted by measured values obtained from previously or subsequently transmitted signals.

L'invention concerne un radar de type à modulation de fréquence d'ondes entretenues. Ce radar est pourvu d'un émetteur pour l'émission périodique d'un signal d'émetteur, une antenne, un étage mélangeur, un convertisseur analogique-numérique, un transformateur de Fourier et un suppresseur d'interférences pour supprimer les signaux d'interférence à impulsions. Lors de la présence de signaux d'interférence à impulsions, les valeurs mesurées au niveau de la sortie du convertisseur analogique-numérique sont substituées par des valeurs mesurées obtenues à partir de signaux transmis préalablement ou ultérieurement.

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