RT Journal Article
T1 Optimal design of optical reference signals by use of a genetic algorithm
A1 Saez Landete, José
A1 Salcedo Sanz, Sancho
A1 Rosa Zurera, Manuel
A1 Alonso Fernández, José
A1 Bernabeu Martínez, Eusebio
AB A new technique for the generation of optical reference signals with optimal properties is presented. In grating measurement systems a reference signal is needed to achieve an absolute measurement of the position. The optical signal is the autocorrelation of two codes with binary transmittance. For a long time, the design of this type of code has required great computational effort, which limits the size of the code to ~30 elements. Recently, the application of the dividing rectangles (DIRECT) algorithm has allowed the automatic design of codes up to 100 elements. Because of the binary nature of the problem and the parallel processing of the genetic algorithms, these algorithms are efficient tools for obtaining codes with particular autocorrelation properties. We design optimum zero reference codes with arbitrary length by means of a genetic algorithm enhanced with a restricted search operator.
PB The Optical Society Of America
SN 0146-9592
YR 2005
FD 2005-10-15
LK https://hdl.handle.net/20.500.14352/51195
UL https://hdl.handle.net/20.500.14352/51195
LA eng
NO © 2005 Optical Society of America.This research was supported by the National Research Program project DPI2004-7334 and by a project of the Universidad de Alcalá (UAH PI2005/078).
NO Ministerio de Educación y Ciencia (MEC), España
NO Universidad de Alcalá
DS Docta Complutense
RD 9 jul 2025