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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 1 — Jan. 10, 2005
  • pp: 195–201

Design of zero reference codes by means of a global optimization method

José Saez-Landete, José Alonso, and Eusebio Bernabeu  »View Author Affiliations

Optics Express, Vol. 13, Issue 1, pp. 195-201 (2005)

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The grating measurement systems can be used for displacement and angle measurements. They require of zero reference codes to obtain zero reference signals and absolute measures. The zero reference signals are obtained from the autocorrelation of two identical zero reference codes. The design of codes which generate optimum signals is rather complex, especially for larges codes. In this paper we present a global optimization method, a DIRECT algorithm for the design of zero reference codes. This method proves to be a powerful tool for solving this inverse problem.

© 2005 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices

ToC Category:
Research Papers

Original Manuscript: September 29, 2004
Revised Manuscript: December 23, 2004
Manuscript Accepted: December 27, 2004
Published: January 10, 2005

José Saez-Landete, José Alonso, and Eusebio Bernabeu, "Design of zero reference codes by means of a global optimization method," Opt. Express 13, 195-201 (2005)

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