Patent ID: 11965865
Assignee: SHIMADZU CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A waveform processing device configured to process three-dimensional data obtained by acquiring a series of first signal waveforms representing a relationship between a first parameter and a signal intensity for a given set of changing second parameters, and to separate overlapping peaks observed in a second signal waveform representing a relationship between the second parameter and the signal intensity into a plurality of individual peaks originating from different factors based on signal patterns observed in a dimension of the first parameter, the waveform processing device comprising:
a singular value decomposition (SVD) processor configured to perform singular value decomposition on an input matrix expressing three-dimensional data to be processed, and to determine a first matrix representing a plurality of basis vectors related to the first parameter and a second matrix representing a plurality of weighting vectors related to the second parameter, where the first matrix and the second matrix have a lowered rank than the input matrix based on singular values obtained by the singular value decomposition;
a transformation matrix acquirer configured to estimate characteristic orientations within a space spanned by the plurality of basis vectors by performing a geometric analysis on a trajectory defined by the plurality of weighting vectors in an SVD projection space whose number of dimensions is equal to the lowered rank given by a singular value decomposition process, and to determine a transformation matrix containing relevant information of the characteristic orientations; and
a peak separation calculator configured to deconvolute signal waveforms in the first matrix of the dimension of the first parameter by the transformation matrix, and to separate peaks in the second signal waveform in the second matrix by the transformation matrix.