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US 10,656,017 B2Granted
On-board processing of hyperspectral data
AssigneeEagle Technology, LLC
InventorsPaul Maurer, Anna J. Glumb
Life of this patent
Estimating the term…
Abstract
Methods and systems to extract a spectrum of a hyperspectral interferogram, with innovative treatment of off-axis spectral correction and other features, which may be efficiently performed on-board a satellite.
Claims20
A method, comprising:
- re-sampling a digitized interferogram captured by a multi-pixel hyperspectral interferometer, at rates that are based on positions of the pixels relative to a center path of the interferometer to provide a coarse off-axis correction;
- extracting a frequency domain spectrum of the re-sampled interferogram;
- performing residual adjustments to the frequency domain spectrum to provide a corrected spectrum;
- and
- compressing the corrected spectrum for storage and/or transmission.
2 more elements
An apparatus, comprising circuitry configured to:
- re-sample an interferogram captured by a multi-pixel hyperspectral interferometer, at rates that are based on positions of the pixels relative to a center path of the of the interferometer to provide a coarse off-axis correction;
- extract a frequency domain spectrum of the re-sampled interferogram;
- perform residual adjustments to the frequency domain spectrum to provide a corrected spectrum;
- and
- compress the corrected spectrum for storage and/or transmission.
2 more elements
A non-transitory computer readable medium encoded with a computer program, including instructions to cause a processor to:
- resample an interferogram captured by a multi-pixel hyperspectral interferometer, at rates that are based on positions of the pixels relative to a center path of the of the interferometer to provide a coarse off-axis correction;
- extract a frequency domain spectrum of the re-sampled interferogram;
- perform residual adjustments to the frequency domain spectrum to provide a corrected spectrum;
- and
- compress the corrected spectrum for storage and/or transmission.
2 more elements
Dependencies are inferred from the claim text.