%0 Journal Article
%A Quiroga Mellado, Juan Antonio
%A Marroquín Zaleta, José Luis
%A Servín Guirado, Manuel
%T Regularized quadrature and phase tracking from a single closed-fringe interferogram
%D 2004
%@ 1084-7529
%U https://hdl.handle.net/20.500.14352/50817
%X A new sequential phase demodulator based on a regularized quadrature and phase tracker system (RAPT) is applied to demodulate two-dimensional fringe patterns. This RQPT system tracks the fringe pattern's quadrature and phase in a sequential way by following the path of the fringes. To make the RAPT system more robust to noise, the modulating phase around a small neighborhood is modeled as a plane and the quadrature of the signal is estimated simultaneously with the fringe's modulating phase. By sequentially calculating the quadrature of the fringe pattern, one obtains a more robust sequential demodulator than was previously possible. This system may be applied to the demodulation of a single interferogram having closed fringes.
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