PMID- 25536002 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150521 LR - 20181113 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 14 IP - 12 DP - 2014 Dec 19 TI - An architecture for measuring joint angles using a long period fiber grating-based sensor. PG - 24483-501 LID - 10.3390/s141224483 [doi] AB - The implementation of signal filters in a real-time form requires a tradeoff between computation resources and the system performance. Therefore, taking advantage of low lag response and the reduced consumption of resources, in this article, the Recursive Least Square (RLS) algorithm is used to filter a signal acquired from a fiber-optics-based sensor. In particular, a Long-Period Fiber Grating (LPFG) sensor is used to measure the bending movement of a finger. After that, the Gaussian Mixture Model (GMM) technique allows us to classify the corresponding finger position along the motion range. For these measures to help in the development of an autonomous robotic hand, the proposed technique can be straightforwardly implemented on real time platforms such as Field Programmable Gate Array (FPGA) or Digital Signal Processors (DSP). Different angle measurements of the finger's motion are carried out by the prototype and a detailed analysis of the system performance is presented. FAU - Perez-Ramirez, Carlos A AU - Perez-Ramirez CA AD - Laboratorio de Procesamiento Digital de Senales, Departamento de Electronica, DICIS, Universidad de Guanajuato, Carr. Salamanca-Valle de Santiago Km. 3.5 + 1.8 Km., Salamanca 36885, Mexico. ca.perezramirez@ugto.mx. FAU - Almanza-Ojeda, Dora L AU - Almanza-Ojeda DL AD - Departamento de Ingenieria Robotica, Universidad Politecnica de Guanajuato, Av. Universidad Norte SN, Comunidad Juan Alonso, Cortazar 38483, Mexico. luzdora@ieee.org. FAU - Guerrero-Tavares, Jesus N AU - Guerrero-Tavares JN AD - Laboratorio de Optoelectronica, Departamento de Electronica, DICIS, Universidad de Guanajuato, Carr. Salamanca-Valle de Santiago Km. 3.5 + 1.8 Km., Salamanca 36885, Mexico. FAU - Mendoza-Galindo, Francisco J AU - Mendoza-Galindo FJ AD - Laboratorio de Procesamiento Digital de Senales, Departamento de Electronica, DICIS, Universidad de Guanajuato, Carr. Salamanca-Valle de Santiago Km. 3.5 + 1.8 Km., Salamanca 36885, Mexico. fj.mendozagalindo@ugto.mx. FAU - Estudillo-Ayala, Julian M AU - Estudillo-Ayala JM AD - Laboratorio de Optoelectronica, Departamento de Electronica, DICIS, Universidad de Guanajuato, Carr. Salamanca-Valle de Santiago Km. 3.5 + 1.8 Km., Salamanca 36885, Mexico. julian@ugto.mx. FAU - Ibarra-Manzano, Mario A AU - Ibarra-Manzano MA AD - Laboratorio de Procesamiento Digital de Senales, Departamento de Electronica, DICIS, Universidad de Guanajuato, Carr. Salamanca-Valle de Santiago Km. 3.5 + 1.8 Km., Salamanca 36885, Mexico. ibarram@ugto.mx. LA - eng PT - Journal Article DEP - 20141219 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 PMC - PMC4299122 EDAT- 2014/12/24 06:00 MHDA- 2014/12/24 06:01 PMCR- 2014/12/01 CRDT- 2014/12/24 06:00 PHST- 2014/09/03 00:00 [received] PHST- 2014/12/06 00:00 [revised] PHST- 2014/12/09 00:00 [accepted] PHST- 2014/12/24 06:00 [entrez] PHST- 2014/12/24 06:00 [pubmed] PHST- 2014/12/24 06:01 [medline] PHST- 2014/12/01 00:00 [pmc-release] AID - s141224483 [pii] AID - sensors-14-24483 [pii] AID - 10.3390/s141224483 [doi] PST - epublish SO - Sensors (Basel). 2014 Dec 19;14(12):24483-501. doi: 10.3390/s141224483.