Universidad Complutense de Madrid
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Design of two-dimensional zero reference codes by means of a global optimization method

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Saez Landete, José and Alonso Fernández, José and Bernabeu Martínez, Eusebio (2005) Design of two-dimensional zero reference codes by means of a global optimization method. Optics Express, 13 (11). pp. 4230-4236. ISSN 1094-4087

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Official URL: http://dx.doi.org/10.1364/OPEX.13.004230


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Abstract

A method to obtain the absolute measure of the position is by means of the autocorrelation of two zero reference marks. In one-axis measurement systems one dimensional mark are used and the design of these marks is relatively complex. When the movement is in two-axes, two dimensional reference marks are required and they are even harder to design. We report a method of global optimization to calculate the optimal two dimensional zero reference marks which generate the reference signal with the highest central peak. This method proves to be a powerful tool for solving this problem.


Item Type:Article
Additional Information:

© 2005 Optical Society of America.
This research was supported by the national research program, Project No. DPI2004-7334

Uncontrolled Keywords:Reference Marks, Systems
Subjects:Sciences > Physics > Optics
ID Code:26738
Deposited On:25 Sep 2014 10:44
Last Modified:25 Sep 2014 10:44

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