Relative noise
US7865322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2008 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | May 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Relative noise is a single scalar value that is used to predict the maximum value of the expected noise at any point and is calculated from the measured signal and a mathematical noise model. The mathematical noise model is selected or estimated from an observation that includes statistical and/or numerical modeling based on a population of measurement points. An absolute noise for a plurality of points of the measured signal is estimated. An array of values is calculated by dividing each of a plurality of points of the absolute noise by a corresponding expected noise value calculated from the mathematical noise model. The relative noise is calculated by taking a standard deviation of a plurality of points of the array. The relative noise can be used to calculate scaled background signal noise, filter regions, denoise data, detect false positives from features, calculate S/N, and determine a stop condition for acquiring data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.