TY - JOUR AU - Saez Landete, José AU - Alonso Fernández, José AU - Bernabeu Martínez, Eusebio PY - 2005 DO - 10.1364/OPEX.13.000195 SN - 1094-4087 UR - https://hdl.handle.net/20.500.14352/51199 T2 - Optics Express AB - 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... LA - eng M2 - 195 PB - The Optical Society Of America KW - Accurate Alignment KW - Bar Codes KW - Systems TI - Design of zero reference codes by means of a global optimization method TY - journal article VL - 13 ER -