Earth sensor

B - Operations – Transporting – 64 – G

Patent

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Details

B64G 1/36 (2006.01) G01C 21/02 (2006.01) H04N 5/33 (2006.01)

Patent

CA 2250451

An earth sensor is herein disclosed in which there is no fear that mechanical resonance is caused, an attitude detection can be stably performed at a high precision, and compactness and light-weightedness can be realized. The earth sensor comprises a substrate 31 which is mounted on a satellite or the like and on which an image I of the earth is formed by scanning the earth horizon; an infrared detector 11 which is placed on the substrate 31 and which detects the image I; and a signal processing unit for processing output signals of the infrared detector 11, wherein the infrared detector 11 has a plurality of pixels 32, 32, ... arranged at predetermined intervals in the direction W-E which coincides with the scan of the substrate 31 and the direction N-S which crosses the scan at a right angle, respectively.

L'invention porte sur un capteur terrestre qui ne présente aucun risque de provoquer la résonance mécanique, qui permet de déterminer l'attitude avec une grande stabilité et une grande précision et qui est compact et léger. Le capteur terrestre comprend un substrat (31) monté à bord d'un satellite ou d'un engin similaire et sur lequel une image I de la Terre est formée par balayage de l'horizon terrestre; un détecteur infrarouge (11) placé sur le substrat (31) et détectant l'image I; une unité de traitement des signaux de sortie du détecteur infrarouge (11), ce dernier comprenant une multitude de pixels (32, 32, ...) disposés à intervalles prédéterminés dans la direction est-ouest, qui coïncide avec la direction de balayage du substrat (31), et dans la direction nord-sud, qui est perpendiculaire à la direction de balayage du substrat.

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