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Phase Estimation in Optical Interferometry
book

Phase Estimation in Optical Interferometry

by Pramod Rastogi, Erwin Hack
November 2014
Intermediate to advanced content levelIntermediate to advanced
366 pages
11h 5m
English
CRC Press
Content preview from Phase Estimation in Optical Interferometry
The Spiral Phase Transform 131
4.3.2 Orientation and Direction Estimation
e simplest implementation of the SPT does not require estimation of the
fringe orientation. Without orientation or direction, it is still possible to esti-
mate the absolute value of the quadrature sine wave using Equation (4.19).
To disentangle the underlying structure of fringe phase, it is necessary
to know, or at least estimate, the fringe direction. Returning to the interfer-
ometric fringe pattern in Equation (4.1), there is an assumption that there
is an underlying phase pattern ψ(x,y). e direction vector associated with
the gradient of this 2-D scalar fu ...
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Publisher Resources

ISBN: 9781466598317