Radar anti-fade systems and methods

Details Radar anti-fade systems and methods Radar anti-fade systems and methods

G - Physics

01

S

G01S 13/18 (2006.01) G01S 7/285 (2006.01)

Patent

CA 2527725

A method for suppressing ground return radar fading in a radar altimeter (10) is described. The method includes providing a radar gate width which corresponds to an area (140) that is smaller than an antenna illumination area being impinged by transmissions of the radar altimeter, dithering the radar gate viewing area (102) within the antenna illumination area being impinged by transmissions of the radar altimeter, and taking radar return samples with the radar altimeter.

L'invention porte sur un procédé de suppression de l'évanouissement des réflexions radar au sol dans un altimètre (10) radar. Ledit procédé comporte les étapes suivantes: choix d'une largeur de fenêtre radar correspondant à une surface (140) plus petite que la zone d'illumination de l'antenne frappée par les émissions de l'altimètre; oscillation du champ de vision (102) de la fenêtre radar à l'intérieur de la zone d'illumination de l'antenne; et capture d'échantillons de réflexions radar par l'altimètre.

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