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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 29 — Oct. 10, 2000
  • pp: 5326–5336

Real-time fringe pattern demodulation with a second-order digital phase-locked loop

Munther A. Gdeisat, David R. Burton, and Michael J. Lalor  »View Author Affiliations


Applied Optics, Vol. 39, Issue 29, pp. 5326-5336 (2000)
http://dx.doi.org/10.1364/AO.39.005326


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Abstract

The use of a second-order digital phase-locked loop (DPLL) to demodulate fringe patterns is presented. The second-order DPLL has better tracking ability and more noise immunity than the first-order loop. Consequently, the second-order DPLL is capable of demodulating a wider range of fringe patterns than the first-order DPLL. A basic analysis of the first- and the second-order loops is given, and a performance comparison between the first- and the second-order DPLL’s in analyzing fringe patterns is presented. The implementation of the second-order loop in real time on a commercial parallel image processing system is described. Fringe patterns are grabbed and processed, and the resultant phase maps are displayed concurrently.

© 2000 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
(120.4630) Instrumentation, measurement, and metrology : Optical inspection

History
Original Manuscript: January 6, 2000
Revised Manuscript: June 22, 2000
Published: October 10, 2000

Citation
Munther A. Gdeisat, David R. Burton, and Michael J. Lalor, "Real-time fringe pattern demodulation with a second-order digital phase-locked loop," Appl. Opt. 39, 5326-5336 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-29-5326


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References

  1. K. Creath, Interferogram Analysis: Digital Fringe Pattern Measurement Techniques, D. W. Robinson, G. T. Reid, eds. Institute of Physics, Bristol, UK, 1993), Chap. 4, pp. 94–140.
  2. M. Takeda, H. Ina, S. Kobayashi, “Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry,” J. Opt. Soc. Am. 72, 156–160 (1982). [CrossRef]
  3. M. Servin, R. Rodriguez-Vera, “Two-dimensional phase locked loop demodulation of interferograms,” J Mod. Opt. 40, 2087–2094 (1993). [CrossRef]
  4. M. Servin, R. Rodriguez-Vera, D. Malacara, “Noisy fringepattern demodulation by an iterative phase locked loop,” Opt. Lasers Eng. 23, 355–365 (1995). [CrossRef]
  5. J. Kozlowski, G. Serra, “New modified phase locked loop method for fringe pattern demodulation,” Opt Eng. 36, 2025–2030 (1996). [CrossRef]
  6. P. Brennan, Phase Locked Loops: Principles and Practice (Macmillan, London, 1996), pp. 188–193.
  7. A. Blanchard, Phase-Locked Loops: Application to Coherent Receiver Design (Wiley, New York, 1976), pp. 154–161.
  8. F. M. Gardner, Phaselock Techniques (Wiley, New York, 1979), pp. 47–53.
  9. F. M. Gardner, “Frequency granularity in digital phaselock loops,” IEEE Trans. Commun. 44, 749–758 (1996). [CrossRef]
  10. Darlington User Guide SHARC3000 (Spectrum Signal Processing, Burnaby, B.C., 1996).
  11. J. Garodnick, J. Greco, D. Schilling, “Response of an all digital phase-locked loop,” IEEE Trans Commun 22, 751–763 (1974). [CrossRef]

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