Pixel-frequency slews and filters for star data measurements

Details Pixel-frequency slews and filters for star data measurements Pixel-frequency slews and filters for star data measurements

2007-08-21

2007-08-21

Tran, Dalena (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Aeronautical vehicle

C244S164000, C701S004000

Reexamination Certificate

active

11064375

ABSTRACT:
A method and apparatus for reducing centroiding error of a star sensor having a plurality of pixels is disclosed. The method comprises the steps of computing a star sensor angular slew rate of ω pixels per star sensor integration period τ, collecting star sensor data while slewing the star sensor according to the selected star sensor angular slew rate ω, and filtering the collected star sensor data according to a frequency determined by the selected star sensor angular slew rate.

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