Method of calibrating an interferometer and reducing its systema

Details Method of calibrating an interferometer and reducing its systema Method of calibrating an interferometer and reducing its systema

1996-02-16

1997-10-07

Voeltz, Emanuel T.

Boots, shoes, and leggings

36457102, 364575, G01B 902

Patent

active

056755139

ABSTRACT:
Methods of operation and data analysis for an interferometer so as to eliminate the errors contributed by non-responsive or unstable pixels, interpixel gain variations that drift over time, and spurious noise that would otherwise degrade the operation of the interferometer are disclosed. The methods provide for either online or post-processing calibration. The methods apply prescribed reversible transformations that exploit the physical properties of interferograms obtained from said interferometer to derive a calibration reference signal for subsequent treatment of said interferograms for interpixel gain variations. A self-consistent approach for treating bad pixels is incorporated into the methods.

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