System and method for adjusting optical data to account for variations introduced in an optical system

An image processing device comprising:

• an image detector;
• and
• a controller adapted to:
• receive a single set of optical data from a detector, wherein the single set of optical data comprises an optical signal and at least one baseline component in the optical data,
• generate a plurality of simulated shifted optical data sets by mathematically shifting the single set of optical data,
• separate data corresponding to the optical signal and the at least one component, and
• determine the at least one baseline component of the single set of optical data based on the separated data.

A spectrometer comprising:

• a laser adapted to provide an excitation beam;
• an optical system adapted to provide the excitation beam to a sample and receive a Raman scattering signal from the sample;
• a detector adapted to receive the Raman scattering signal via the optical system;
• and
• a controller adapted to read a single set of sample spectral data from the detector, the single set of sample spectral data comprising a single measured Raman spectrum component based on the Raman scattering signal and a baseline component, generate a plurality of simulated sets of shifted spectral data by mathematically shifting the single set of sample spectral data corresponding to the single set of sample spectral data of the single measured Raman spectrum, separate data corresponding to the measured Raman spectrum and the baseline component from the single first set of sample spectral data, and determine at least one component of the sample based on the separated measured single Raman spectrum.

A method of determining a Raman spectroscopic signal, the method comprising:

• obtaining a single measured spectrum;
• generating a plurality of simulated shifted discrete spectra corresponding to the single measured spectrum;
• superimposing data from each of the plurality of simulated shifted discrete spectra to create a vector;
• building a mathematical matrix operator;
• and
• using the mathematical matrix operator to solve a linear problem.