Generalized Data Reduction For Heterodyne Interferometry
- 1 August 1984
- journal article
- Published by SPIE-Intl Soc Optical Eng in Optical Engineering
- Vol. 23 (4) , 234350-234350-
- https://doi.org/10.1117/12.7973298
Abstract
A generalized algorithm for use with digital heterodyne or fringe-scanning interferometers was developed that removes many of the restrictions that had previously applied to the data collection scheme. The required phase steps may be chosen with unequal spacing and to extend over a range greater than 27r. The integrating-bucket and phase-step approaches produce identical results.Keywords
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