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1. (WO2001038896) SUN SENSORS USING MULTI-PINHOLE OVERLAYS FOR DETECTION OF SATELLITE ATTITUDE

Pub. No.:    WO/2001/038896    International Application No.:    PCT/CA2000/001350
Publication Date: Fri Jun 01 01:59:59 CEST 2001 International Filing Date: Sat Nov 18 00:59:59 CET 2000
IPC: B64G 1/36
G01S 3/781
G01S 3/786
G05D 1/08
Applicants: CENTRE FOR RESEARCH IN EARTH AND SPACE TECHNOLOGY
HERSOM, Charles, H.
DUGGAN, Philip
GAULT, William, A.
Inventors: HERSOM, Charles, H.
DUGGAN, Philip
GAULT, William, A.
Title: SUN SENSORS USING MULTI-PINHOLE OVERLAYS FOR DETECTION OF SATELLITE ATTITUDE
Abstract:
Sun sensors or position sensors may be used to determine the angularlocation of the sun or other object with respect to the sensor. The sun sensor provideshigh resolution over a wide field of regard. A position or sun sensor comprises asensor housing, a plurality of pinholes formed in the sensor housing, a detectormounted within the housing and a method of processing the information detected. Thedetector is mounted in the sensor housing. Each pinhole has a field of view and thedetector receives the images from each field of view. Each field of view is defined bythe position of the pinhole relative to the detector. The images are received in anoverlay relationship thereby providing a field of regard. The processing methoddetermines the presence and location of an object in a field of regard.