Method for radio frequency interference direct detection and data recovery based on the hilbert-huang transformation for 2-d
AssigneeU.S.A. as represented by the Administrator of the National Aeronautics and Space Administration
InventorSEMION KIZHNER
Life of this patent
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Abstract
Various embodiments relate to an apparatus, method and a non-transitory computer readable medium for detecting radio-frequency interference (RFI) and recovering image data in the RFI using Hilbert-Huang Transform (“HHT2-RFI”) configured to apply Empirical Mode Decomposition (“EMD2”) to decompose image data into a plurality of bi-dimensional intrinsic mode functions (“BIMFs”), determine a RFI by entropic interpretation, augment the RFI by applying Hilbert Spectral Analysis (“HSA2”) to the RFI resulting in RFI data points and perform science data recovery by subtracting the amplitudes of the RFI and the RFI data points from the image data.
Claims9
A method of image data processing for detecting radio-frequency interference (RFI) and recovering image data in the RFI using Hilbert-Huang Transform (“HHT2-RFI”), the method comprising:
- applying Empirical Mode Decomposition (“EMD2”) to decompose image data into a plurality of bi-dimensional intrinsic mode functions (“BIMFs”);
- determining a RFI by entropic interpretation;
- augmenting the RFI by applying Hilbert Spectral Analysis (“HSA2”) to the RFI resulting in RFI data points;
- performing science data recovery by subtracting the amplitudes of the RFI and the RFI data points from the image data.
A non-transitory computer readable medium storing program code for detecting radio-frequency interference (RFI) and recovering image data in the RFI using Hilbert-Huang Transform (“HHT2”)-RFI, the program code being executable by a process to perform operations comprising:
- applying Empirical Mode Decomposition (“EMD2”) to decompose image data into a plurality of bi-dimensional intrinsic mode functions (“BIMFs”);
- determining a RFI by entropic interpretation;
- augmenting the RFI by applying Hilbert Spectral Analysis (“HSA2”) to the RFI resulting in RFI data points;
- performing science data recovery by subtracting the amplitudes of the RFI and the RFI data points from the image data.
A computing device detecting radio-frequency interference (RFI) and recovering image data in the RFI using Hilbert-Huang Transform (“HHT2-RFI”) comprising:
- a processor, and
- a memory coupled to the processor and containing instructions that, when executed by the processor, perform a set of functions including:
- applying Empirical Mode Decomposition (“EMD2”) to decompose image data into a plurality of bi-dimensional intrinsic mode functions (“BIMFs”);
- determining a RFI by entropic interpretation;
- augmenting the RFI by applying Hilbert Spectral Analysis (“HSA2”) to the RFI resulting in RFI data points;
- performing science data recovery by subtracting the amplitudes of the RFI and the RFI data points from the image data.
Dependencies are inferred from the claim text.