%0 Journal Article
%A Wei, Daikang
%A Gong, Qiucheng
%A Chen, Qiuyu
%A Zhu, Yajun
%A Kaufmann, Martin
%A Olschewski, Friedhelm
%A Knieling, Peter
%A Dötzer, Florian
%A Mantel, Klaus
%A Xu, Jiyao
%A Koppmann, Ralf
%A Riese, Martin
%T Modeling and correction of fringe patterns in Doppler asymmetric spatial heterodyne interferometry
%J Applied optics
%V 61
%N 35
%@ 1559-128X
%C Washington, DC
%I Optical Soc. of America
%M FZJ-2022-05913
%P 10528 - 10537
%D 2022
%X Doppler asymmetric spatial heterodyne (DASH) interferometry is a novel concept for observing atmospheric winds. This paper discusses a numerical model for the simulation of fringe patterns and a methodology to correct fringe images for extracting Doppler information from ground-based DASH measurements. Based on the propagation of optical waves, the fringe pattern was modeled considering different angular deviations and optical aberrations. A dislocation between two gratings can introduce an additional spatial modulation associated with the diffraction order, which was seen in laboratory measurements. A phase correction is proposed to remove phase differences between different row interferograms, which is the premise for calculating the average interferogram to improve the signal-to-noise ratio. Laboratory tests, simulation results, and Doppler velocity measurements indicate that a matrix determined in the laboratory can be applied to correct interferograms obtained from ground-based DASH measurements.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 36607115
%U <Go to ISI:>//WOS:000907162800002
%R 10.1364/AO.473147
%U https://juser.fz-juelich.de/record/916067