2026-07-21T14:53:54Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/439772023-08-26T00:49:22Zcom_20.500.14352_14col_20.500.14352_15

Noise in phase shifting interferometry Quiroga Mellado, Juan Antonio Estrada, Julio César Servín Guirado, Manuel Mosiño, Juan Francisco Cywiak Garbarcewics, Moisés We present a theoretical analysis to estimate the amount of phase noise due to noisy interferograms in Phase Shifting Interferometry (PSI). We also analyze the fact that linear filtering transforms corrupting multiplicative noise in Electronic Speckle Pattern Interferometry (ESPI) into fringes corrupted by additive gaussian noise. This fact allow us to obtain a formula to estimate the standard deviation of the noisy demodulated phase as a function of the spectral response of the preprocessing spatial filtering combined with the PSI algorithm used. This phase noise power formula is the main result of this contribution. 2023-06-20T03:35:27Z 2023-06-20T03:35:27Z 2023-06-20T03:35:27Z 2009-05-25 journal article https://hdl.handle.net/20.500.14352/43977 1094-4087 10.1364/OE.17.008789 eng open access The Optical Society Of America