Recursive phase estimation with a spatial radar carrier

Jorge Garcia-Marquez; Manuel Servin Guirado; Gonzalo Paez; Daniel Malacara-Hernandez

doi:10.1117/12.357714

13 August 1999 Recursive phase estimation with a spatial radar carrier

Jorge Garcia-Marquez, Manuel Servin Guirado, Gonzalo Paez, Daniel Malacara-Hernandez

Proceedings Volume 3744, Interferometry '99: Techniques and Technologies; (1999) https://doi.org/10.1117/12.357714
Event: International Conference on Optical Metrology, 1999, Pultusk Castle, Poland

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.

Citation Download Citation

Jorge Garcia-Marquez, Manuel Servin Guirado, Gonzalo Paez, and Daniel Malacara-Hernandez "Recursive phase estimation with a spatial radar carrier", Proc. SPIE 3744, Interferometry '99: Techniques and Technologies, (13 August 1999); https://doi.org/10.1117/12.357714

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