Estimation of water interference for spectral correction
US10101269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/1293
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes decomposing a training set to obtain a principal component matrix having a plurality of principal component vectors. The method also includes variably rejecting portions of a sample spectrum vector that do not correspond to a selected one of the plurality of principal component vectors by incrementally providing a coefficient indicative of the weighting of the selected principal component vector for selected sub-regions. A corrected spectrum vector can be obtained by excluding certain sub-regions of the sample spectrum vector and corresponding principal component vector, multiplying the sample spectrum vector with the principal component matrix for non-excluded sub-regions, providing a predicted interference vector, and subtracting the predicted interference vector from the sample spectrum vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.