DOI 10.17586/0021-3454-2021-64-4-288-293
UDC 535.317
INVARIANCE OF THE ISOPHOTOMETRY PRINCIPLES IN COMPUTER SIMULATION OF INTERFEROGRAM
State Educational Establishment of High Professional Education “Saint-Petersburg State University of Information Technologies, Mechanics and Optics”; Professor
T. V. Tochilina
ITMO University, Saint Petersburg, 197101, Russian Federation; Senior Lecturer
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Abstract. The problem of increasing the accuracy of interferometric measurements is solved on the base of isophotometric processing of the interferogram. Invariance of the isophotometry principles in computer modeling of the interferogram is revealed. The invariance is provided by the apparatus of transformation functions, in particular by the receiver-image analyzer, which changes the image with the transformation of the comb type. This solution can be used when processing any interferograms to improve the accuracy of measuring the interference fringes coordinates.
Keywords: interferogram, isophotometry, invariance, computer simulation, interferometer
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