1) I would like to ask you about a criteria from your experience to help me decide on the values constituting the background noise that I should suppress from my signals while doing data analysis of data acquired via spectrometer (Intensity counts and wavelength). If I have 4/5 spectra I want to make them start from zero.
2) Is there a formula (set of formulas) that take (s) into account the dependency of the spectrum (wavelength drift) with respect to frequency, voltage and temperature ?
Thank you very kindly and in advance for your contributions.
Use lasers with a monochromator plus PMT and control the signal aliasing ( frequency sampling) .Examples
http://www.eas.uccs.edu/~mwickert/ece2610/lecture_notes/ece2610_chap4.pdf
http://www.umsl.edu/~orglab/documents/IR/IR2.html
Matlab
https://www.mathworks.com/help/signal/examples/practical-introduction-to-frequency-domain-analysis.html
check your photodetectors frequency sampling and how are reading data to apply frequency sampling.
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