Spectrographic system that compresses fourier transform spectral data and associated methods
AssigneeEagle Technology, LLC
InventorRICHARD D. FORKERT
Life of this patent
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Abstract
A spectrographic system includes a space-borne spectrometer in communication with a ground-based processor. The space-borne spectrometer may include an interferometer, a detector array downstream from the interferometer, and a spectrometer controller configured to cooperate with the detector array to collect Fourier Transform Spectral (FTS) data, generate Principle Component Analysis (PCA) scores from the collected FTS data, generate an approximate interferogram based upon the PCA scores and the collected FTS data, generate residuals based upon the approximate interferogram, and generate compressed FTS data based upon the PCA scores and residuals to be sent to the ground-based processor.
Claims27
A spectrographic system comprising:
- a space-borne spectrometer and a ground-based processor in communication therewith;
- the space-borne spectrometer comprising
- an interferometer,
- a detector array downstream from the interferometer, and
- a spectrometer controller configured to
- cooperate with the detector array to collect Fourier Transform Spectral (FTS) data,
- generate Principle Component Analysis (PCA) scores from the collected FTS data,
- generate an approximate interferogram based upon the PCA scores and the collected FTS data,
- generate residuals based upon the approximate interferogram, and
- generate compressed FTS data based upon the PCA scores and residuals to be sent to the ground-based processor.
A spectrometer for space-borne use comprising:
- an interferometer;
- a detector array downstream from the interferometer;
- and
- a spectrometer controller configured to
- cooperate with the detector array to collect Fourier Transform Spectral (FTS) data,
- generate Principle Component Analysis (PCA) scores from the collected FTS data,
- generate an approximate interferogram based upon the PCA scores and the collected FTS data,
- generate residuals based upon the approximate interferogram, and
- generate compressed FTS data based upon the PCA scores and residuals to be sent to a ground-based processor.
A ground-based processor for use with a space-borne spectrometer configured to generate compressed Fourier Transform Spectral (FTS) data, the ground-based processor comprising:
- a receiver configured to receive the FTS data from the space-borne spectrometer;
- and
- a ground-based controller coupled to the receiver and configured to
- decode encoded PCA scores from the compressed FTS data,
- decode encoded residuals from the compressed FTS data, and
- generate decompressed FTS data from the decoded encoded PCA scores and decoded encoded residuals.
A spectrographic method comprising:
- operating a space-borne spectrometer controller to
- cooperate with a detector array to collect Fourier Transform Spectral (FTS) data,
- generate Principle Component Analysis (PCA) scores from the collected FTS data,
- generate an approximate interferogram based upon the PCA scores and the collected FTS data,
- generate residuals based upon the approximate interferogram, and
- generate compressed FTS data based upon the PCA scores and residuals to be sent to a ground-based processor.
Dependencies are inferred from the claim text.