RT Journal Article
T1 Demodulation of carrier fringe patterns by the use of non-recursive digital phase locked loop
A1 Quiroga Mellado, Juan Antonio
A1 Servín Guirado, Manuel
A1 Cuevas de la Rosa, Francisco Javier
AB First- and second-order recursive Digital Phase Locked Loops (DPLLs) have been used recently in fringe data processing because it is the fastest way to obtain the unwrapped phase of a carrier frequency fringe pattern due to its minimal computational overhead. Nevertheless these simple DPLLs cannot cope with fringes having high noise and very wide band phase modulation. In this work we present a highly improved DPLL. The system presented is a nonrecursive DPLL which is far more robust than previously presented recursive DPLL. The advantage of this newer technique with respect to recursive DPLL is its higher gain in the signal to noise ratio on the detected phase and higher stability. Unfortunately this is obtained at a higher computational cost.
PB Elsevier Science BV
SN 0030-4018
YR 2001
FD 2001-12-15
LK https://hdl.handle.net/20.500.14352/58782
UL https://hdl.handle.net/20.500.14352/58782
LA eng
NO © 2001 Elsevier Science B.V.We would like to acknowledge the Mexican Goverment support through CONACYT for the development of this work.
NO Consejo Nacional de Ciencia y Tecnología. CONACYT (México)
DS Docta Complutense
RD 20 abr 2025