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Paper: 2nd-order Phase Unwrapping and Processing for Interferometry
Volume: 194, Working on the Fringe: Optical and IR Interferometry from Ground and Space
Page: 105
Authors: Mertz, L.
Abstract: An algorithm is described to accomplish 2nd-order phase unwrapping and filtering. A motive for this IIR recursive lowpass filter is improved out-of-band rejection wanted by δ-sigma operation. An additional anticipated virtue is tolerance of higher slew rates for phase tracking. For faint sources, updating the recursion with each photon leads to unusual statistics.
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