English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Here we show how to design phase-shifting algorithms (PSAs) for nonuniformphase-shifted fringe patterns using their frequency transfer function (FTF).Assuming that the nonuniform/nonlinear (NL) phase-steps are known, we introducethe desired zeroes in the FTF to obtain the specific NL-PSA formula. Theadvantage of designing NL-PSAs based on their FTF is that one can reject manydistorting harmonics of the fringes. We can also estimate the signal-to-noiseratio (SNR) for interferograms corrupted by additive white Gaussian noise(AWGN). Finally, for non-distorted noiseless fringes, the proposed NL-PSAretrieves the modulating phase error-free, just as standard/linear PSAs do.

Design of non-uniformly spaced phase-stepped algorithms using their frequency transfer function