Show simple item record

Title

N-step linear phase-shifting algorithms with optimum signal to noise phase demodulation

dc.contributor.authorAdonai Gonzalez, Christhian
dc.contributor.authorServín Guirado, Manuel
dc.contributor.authorEstrada Rico, Julio Cesar
dc.contributor.authorRosu Barbus, Haret-Codratian
dc.contributor.editorTaylor & Francis
dc.date.accessioned2018-03-21T23:42:27Z
dc.date.available2018-03-21T23:42:27Z
dc.date.issued2011
dc.identifier.urihttp://hdl.handle.net/11627/3490
dc.description.abstract"A common way to test an optical wavefront is to use a phase-shifting interferometer along with (for example) a three-step linear phase-shifting algorithm (PSA). The following fundamental question arises: what phase step should be used? Typically, pi/2, 2 pi/3 or pi/3 are used and, in fact, any phase step within the open interval (0, pi) can be employed. In the absence of any measuring noise, all these phase shifts yield the same estimate for the modulating phase. However, which of these phase steps omega(0) is the best to obtain the least noisy phase estimation from a temporal set of three noisy interferograms? Working in frequency space, a general procedure to obtain the optimum phase step omega(0) of a given linear N-step PSA is presented. This general procedure is exemplified for some particular linear PSAs, notably 3-, 5-, 7-, and 27-step PSAs."
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPhase shifting algorithm
dc.subjectQuadrature filter
dc.subjectSignal to noise ratio
dc.subject.classificationCIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA
dc.titleN-step linear phase-shifting algorithms with optimum signal to noise phase demodulation
dc.typearticle
dc.identifier.doihttp://dx.doi.org/10.1080/09500340.2011.604735
dc.rights.accessAcceso Abierto


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional