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Proceedings Paper

Recursive phase estimation with a spatial radar carrier
Author(s): Jorge Garcia-Marquez; Manuel Servin Guirado; Gonzalo Paez; Daniel Malacara-Hernandez
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Paper Abstract

An interferogram can be demodulated to find the wavefront shape if a radial carrier is introduced. The phase determination is made in the space domain, but the low-pass filter characteristics must be properly chosen. One disadvantage of this method is the possible removal of some frequencies from the central lobe, resulting in a misinterpretation of the true phase. Nevertheless isolating the central order by using a recursive method when a radial carrier reference is used is possible. An example of a recovered phase from a simulated interferogram is shown.

Paper Details

Date Published: 13 August 1999
PDF: 4 pages
Proc. SPIE 3744, Interferometry '99: Techniques and Technologies, (13 August 1999); doi: 10.1117/12.357714
Show Author Affiliations
Jorge Garcia-Marquez, Ctr. de Investigaciones en Optica (Mexico)
Manuel Servin Guirado, Ctr. de Investigaciones en Optica (Mexico)
Gonzalo Paez, Ctr. de Investigaciones en Optica (Mexico)
Daniel Malacara-Hernandez, Ctr. de Investigaciones en Optica (Mexico)

Published in SPIE Proceedings Vol. 3744:
Interferometry '99: Techniques and Technologies
Malgorzata Kujawinska; Mitsuo Takeda, Editor(s)

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