RT Journal Article
T1 Spectral analysis of phase shifting algorithms
A1 Quiroga Mellado, Juan Antonio
A1 Estrada, Julio César
A1 Servín Guirado, Manuel
AB Systematic spectral analysis of Phase Shifting Interferometry (PSI) algorithms was first proposed in 1990 by Freischlad and Koliopoulos (F&K). This analysis was proposed with the intention that "in a glance" the main properties of the PSI algorithms would be highlighted. However a major drawback of the F&K spectral analysis is that it changes when the PSI algorithm is rotated or its reference signal is time-shifted. In other words, the F&K spectral plot is different when the PSI algorithm is rotated or its reference is time-shifted. However, it is well known that these simple operations do not alter the basic phase demodulation properties of PSI algorithms, except for an unimportant piston. Here we propose a new way to analyze the spectra of PSI algorithms which is invariant to rotation and/or reference time-shift among other advantages over the nowadays standard PSI spectral analysis by F&K.
PB The Optical Society Of America
SN 1094-4087
YR 2009
FD 2009-09-14
LK https://hdl.handle.net/20.500.14352/43974
UL https://hdl.handle.net/20.500.14352/43974
LA eng
NO © 2009 Optical Society of America.We acknowledge the valuable support of the Mexican Science Council, CONACYT.
NO Mexican Science Council, CONACYT
DS Docta Complutense
RD 6 abr 2025