29.1.16 DasSpectraData
Topic Version | 1 | Published | 12/09/2016 | ||
For Standard | PRODML v2.0 | ||||
Type: | Class | Stereotype: | «XSDcomplexType» |
Three-dimensional array (loci, time, transform) containing spectrum data samples. Spectrum data is processed data obtained by applying a mathematical transformation function to the DAS raw data acquired by the acquisition system. The array is 3D and contains TransformSize points for each locus and time for which the data is provided. For example, many service providers will provide Fourier transformed versions of the raw data to customers, but other transformation functions are also allowed.
Name |
Type |
Notes |
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Dimensions |
DasDimensions |
An array of three elements describing the ordering of the raw data array. The fastest running index is stored in the last element. For example {‘time’, ‘locus’, ‘frequency’} indicates that the frequency is the fastest running index. Note that vendors may deliver data with different orderings. |
EndFrequency |
FrequencyMeasure |
End frequency in a DAS spectra data set. This value is typically set to the maximum frequency present in the spectra data set. |
StartFrequency |
FrequencyMeasure |
Start frequency in a DAS spectra data set. This value typically is set to the minimum frequency present in the spectra data set. |
Association |
Notes |
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From: DasSpectraData.SpectraDataArray 1To: AbstractNumericArray Association |