| US 7,552,026 B2 | ||
| APS based integrated sun sensor | ||
| Guangjun Zhang, Beijing (China); Jie Jiang, Beijing (China); and Qiaoyun Fan, Beijing (China) | ||
| Assigned to Beihang University, Haidian District, Beijing (China) | ||
| Filed on Mar. 16, 2007, as Appl. No. 11/687,333. | ||
| Claims priority of application No. 2006 1 0103797 (CN), filed on Aug. 01, 2006. | ||
| Prior Publication US 2008/0029652 A1, Feb. 07, 2008 | ||
| Int. Cl. G06F 3/00 (2006.01) | ||
| U.S. Cl. 702—154 [702/150; 702/155; 702/159] | 11 Claims |
| 1. An active pixel sensor based integrated sun sensor comprising:
a diaphragm unit;
a detection unit;
a processing electronics unit; and
an interface unit;
wherein the diaphragm unit is operatively connected with the detection unit for forming a sunspots image; and wherein the
detection unit is configured for outputting a gray value of each pixel of the sunspots image;
wherein the processing electronics unit is operatively connected with the detector unit and the interface unit respectively
for evaluating an attitude angle on the basis of the gray value and a coordinate of each pixel of the sunspots image; the
processing electronics unit includes an absence detection and identification of a sunspot module configured to detect an absence
of a specific sunspot in the sunspots image detected by the detection unit according to sunspots included in the sunspots
image; and
wherein the interface unit is operatively connected with a host computer for transferring an attitude angle to the host computer.
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