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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
Local Polynomial Phase Modeling and Estimation 227
BOX6.5 2-D PHASE-DIFFERENCING OPERATOR
Consider the following two-dimensional (2-D) signal:
Γ(x,y) = exp[jϕ(x,y)] + η(x,y) {(x,y) [0,255]}
with a bivariate quadratic phase, given as
φ= +++++xy ccyc xc yc xy
cx
(,)(0,0) (0,1)(1, 0) (0,2)(1, 1) (2,0)
22
where the coefficients c(0,0) = 0, [c(0,1),c(1,0)] = [0.3, 0.2] and
[c(0,2),c(1,1),c(2,0)] = [−0.003, −0.002, 0.001], and the noise standard
deviation σ
η
= 0.2. This equation indicates that the phase can be viewed as
having three layers. The simulated phase is shown in Figure6.14a.
For the phase-differencing operator method, we proceed by ...
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Publisher Resources

ISBN: 9781466598317