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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

System and method to enhance attitude estimation for transfer orbit maneuver

Invented by: Danny D. Howard
Los Angeles, CA

Che-Hang Charles Ih
Rancho Palos Verdes, CA

Originally Assigned to: The Boeing Company
Chicago, IL
[Now assigned to . . .]

Issued:2007-11-27
Filed:2004-04-29
Application No:10834670
Examined by:Beaulieu; Yonel

A system and method to enhance attitude estimation for transfer orbit maneuvers of a spinning satellite includes a transfer orbit earth sensor that can receive and convert an infrared radiance to an analog signal. The analog signal is provided to a hardware chord processor and an analog-to-digital converter. The hardware chord processor determines an earth chord length based on the analog signal. The analog signal is sampled in the analog-to-digital converter to provide a digital signal to a digital earth sensor pre-processor, which reshapes the digital signal to provide a pre-processed signal having nearly distinct peaks. A software chord processor is provided with the pre-processed signal. The software chord processor locates the peaks in the pre-processed signal and determines an earth chord length.

[pdf] U.S. Pat. No. 7,302,317

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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