METHOD OF MEASUREMENTS WITH RANDOM PERTURBATION
Here we report on an application of simultaneous perturbation for stochastic approximation (SPSA) algorithm for filtering systematic noise (SN) in photoelectron spectra of solid state. In our analysis of the experimental data by means of SPSA algorithm we have used 50 photoelectron spectra where SN was introduced. We have found that the resulted SPSA-spectrum is in good agreement with the spectrum measured without SN.