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alvaro.hernandez

2005
J. J. Garcia, et al., “Optimal estimation techniques to reduce false alarms in railway obstacle detection”, in IEEE International Conference on Industrial Technology, 2005. ICIT 2005. , Hong Kong, 2005, p. 459 - 464. Abstract  Download: ICIT-2005-JJ.pdf (5.57 MB)
J. J. Garcia, et al., “Dedicated smart IR barrier for obstacle detection in railways”, in 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005. , 2005, p. 439 - 444. Abstract  Download: IECON-2005-JJ.pdf (699.72 KB)
J. A. Jimenez, et al., “Using PCA in Time-Of-Flight Vectors for Reflector Recognition and 3D-Location”, IEEE Transactions on Robotics, vol. 21, no. 5, p. 909-924, 2005. Download: Using_PCA_in_Time-of-Flight_Vectors_for_Reflector_Recognition_and.pdf (3.69 MB)
P. G. Donato, J. Ureña, M. Mazo, Á. Hernández, and J. J. Garcia, “Ajuste de un Puente de Alterna para su uso en un Array de Sensores de Posición”, in Seminario Anual de Automatica, Electronica Industrial e Instrumentacion (SAAEI´05), Santander, España, 2005, vol. 1, 1 vol., p. 721-726. Download: Ajuste_de_un_puente_de_alterna_SAAEI_DONATO_05.pdf (302.35 KB)
Á. Hernández, et al., “A comparison of computing architectures for ultrasonic signal processing”, in 2005 IEEE International Workshop on Intelligent Signal Processing, WISP 2005, Faro, Portugal, 2005, p. 38 - 40. Abstract  Download: WISP2005-Alvaro.pdf (1.18 MB)
J. M. Villadangos, et al., “Improvement of ultrasonic beacon-based local position system using multi-access techniques”, in 2005 IEEE International Workshop on Intelligent Signal Processing, WISP 2005, Faro, Portugal, 2005, p. 352 - 357. Abstract  Download: WISP2005-Villa.pdf (1.2 MB)
J. J. Garcia, et al., “Sensor Codification with Mutually Orthogonal Complementary Set of Sequences”, in 4th IEEE International Symposium on Intelligent Signal Processing (WISP2005), Faro, Portugal, 2005, vol. CD, p. 1-6.
J. J. Garcia, et al., “Simulador para Deteccion de Obstaculos en Vias Ferreas, basado en Tecnicas Opticas”, in Seminario Anual de Automatica, Electronica Industrial e Instrumentacion (SAAEI´05), Santander, España, 2005, vol. 1, 1 vol., p. 744-749. Download: Simulador_para_Deteccion_de_Obstaculos_en_Vias_Ferreas_SAAEI_JJ-GARCIA_05.pdf (2.12 MB)
C. D. Marzziani, et al., “Simultaneous Measurement of Times-of-Flight and Communications in Acoustic Sensor Networks”, in IEEE International Symposium on Intelligent Signal Processing (WISP 2005), Faro, Portugal, 2005, p. 1.
F. J. Álvarez, et al., “Using Complementary Sets of Sequences for Direct Channel Estimation in Asynchronous Systems”, in 4th IEEE International Symposium on Intelligent Signal Processing (WISP2005), Faro, Portugal, 2005, p. 1-6.
A. Ochoa, et al., “Ultrasonic pattern recognition based on ANN and PCA techniques”, in IEEE International Symposium on Industrial Electronics (ISIE´05), Dubrovnik, Croatia, 2005, p. 1.
J. Ureña, et al., “Advanced sonar for robotics”, in 3rd Workshop on Biomimetic Ultrasonics, Alcalá de Henares, España, 2005, vol. CD, p. CD. Download: biomimetic ws.pdf (1.6 MB)
Á. Hernández, et al., “Precision improvement and reduction of blind zones in ultrasonic transducers using Golay complementary sequences”, Traitement du Signal, vol. 22, no. 2, p. 121-134, 2005.
C. D. Marzziani, et al., “Relative Positioning System Using Acoustic Sensors for Ubiquitous Computing Applications”, UPGRADE, The European Journal for the Informatics Professional, vol. 6, no. 5, p. 39-45, 2005.
2004
F. J. Álvarez, et al., “Complementary sets of sequences-based coding for ultrasonic array sensor”, in Third IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM'04), Sitges, España, 2004, vol. CD, p. CD. Abstract  Download: Complementary sets of sequences.pdf (679.96 KB)
P. G. Donato, J. Ureña, M. Mazo, J. J. Garcia, Á. Hernández, and F. J. Álvarez, “Electromagnetic sensor array for train wheel detection”, in Third IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM'04), Sitges, España, 2004, vol. CD, p. 1 - 4. Abstract  Download: Electromagnetic sensor array for train wheel detection.pdf (808.99 KB)
J. J. Garcia, et al., “IR sensor array configuration and signal processing for detecting obstacles in railways”, in Third IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM?04), Sitges, España, 2004, vol. CD, p. CD. Abstract  Download: IR sensor array configuration and signal processing for detecting obstacles in railways.pdf (785.17 KB)
J. J. Garcia, et al., “Codification Techniques of Complementary Sequences for Multimode Synchronous System for IR sensors”, in IADAT-tcn2004, International Conference on Telecommunications and Network Computers., San Sebastian, España, 2004, p. 11-15. Download: IADAT04_II.pdf (1.05 MB)
F. J. Álvarez, et al., “A comparative analysis of two modulation schemes for the efficient transmisión of complementary sequences in a pulse compression ultrasonic system.”, in IADAT-tcn2004, International Conference on Telecommunications and Network Computers., San Sebastian, España, 2004, p. 26-30. Download: IADAT04_IV.pdf (1.18 MB)
Á. Hernández, J. Ureña, J. J. Garcia, M. Mazo, J. P. Derutin, and J. Sérot, “Ultrasonic ranging sensor using simultaneous emission from different transducers”, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 51, no. 12, p. 1660-1670, 2004. Download: a2004.pdf (1.51 MB)
J. M. Villadangos, J. Ureña, M. Mazo, and Á. Hernández, “Use of DS-CDMA based Gold Sequences for a Local Position System with Ultrasonic Beacons”, in IADAT-tcn2004, International Conference on Telecommunications and Network Computers., San Sebastian, España, 2004, p. 16-20. Download: IADAT04_III.pdf (1.2 MB)
C. D. Marzziani, et al., “Use of orthogonal sets of eight complementary sequences for asynchronous DS-CDMA”, in IADAT-tcn2004, International Conference on Telecommunications and Network Computers., San Sebastian, España, 2004, p. 6-10. Download: IADAT04_I.pdf (1.1 MB)
J. J. Garcia, et al., “IR Sensor Array for Detecting Obstacles in Railways”, in Seminario Anual de Automatica, Electronica Industrial e Instrumentacion (SAAEI´04), Toulouse, Francia, 2004, vol. 1, 1 vol., p. 1-6. Download: IR_Sensor_Array_for_Detecting_Obstacles_in_Railways_SAAEI_JJ-GARCIA_04.pdf (1.77 MB)
C. D. Marzziani, J. Ureña, M. Mazo, Á. Hernández, and J. M. Villadangos, “Sistema de Localizacion en Redes de Sensores Acusticos Inteligentes utilizando Secuencias Golay”, in Seminario Anual de Automatica, Electronica Industrial e Instrumentacion (SAAEI´04), Toulouse, Francia, 2004, vol. 1, 1 vol., p. 1-6. Download: Sistema_de_Localizacion_en_Redes_de_Sensores_Acusticos_Inteligentes_utilizando_Secuencias_SAAEI_MARCIANI_04.pdf (1.29 MB)
F. J. Álvarez, et al., “Sistema de Sensores Ultrasonicos para la Detección de Obstaculos basado en la Transmision de Secuencias Golay con Modulacion QPSK y Portadoras de Distinta Frecuencia”, in Seminario Anual de Automatica, Electronica Industrial e Instrumentacion (SAAEI´04), Toulouse, Francia, 2004, vol. 1, 1 vol., p. 1-6. Download: Sistema_De_Sensores_Ultrasonicos_Para_La_Deteccion_De_ObstAculos_SAAEI_ALVAREZ_04.pdf (1.62 MB)
P. G. Donato, J. Ureña, M. Mazo, J. J. Garcia, Á. Hernández, and F. J. Álvarez, “Optimization of train detection in intelligent railway transportation systems”, in 5th IFAC/EURON Symposium on Intelligent Autonomous Vehicles (IAV 2004), Lisboa, Portugal, 2004, p. 1.
J. J. Garcia, et al., “Low cost obstacle detection for smart railway infrastructures”, in IEEE Intelligent Vehicles Symposium (IV'04), Parma, Italia, 2004, 1 vol., p. 670-675. Download: IV04_I.pdf (2.4 MB)
F. J. Álvarez, J. Ureña, M. Mazo, Á. Hernández, J. J. Garcia, and P. G. Donato, “Ultrasonic Sensor System for Detecting Falling Objects on Railways”, in IEEE Intelligent Vehicles Symposium (IV'04), Parma, Italia, 2004, vol. 1, 1 vol., p. 866 - 871. Download: IV04_II.pdf (1.41 MB)
F. J. Álvarez, J. Ureña, M. Mazo, Á. Hernández, J. J. Garcia, and J. A. Jimenez, “Efficient generator and pulse compressor for complementary sets of four sequences”, IEE Electronics Letters, vol. 40, no. 11, p. 703-704, 2004. Download: a2004.pdf (60.96 KB)
2003
J. A. Jimenez, J. Ureña, M. Mazo, E. Santiso, Á. Hernández, and F. J. Meca, “Characterisation of an ultrasonic sensor designed to identify reflectors in 3D environments”, in 11th International Conference on Advanced Robotics (ICAR'03)., Coimbra, Portugal, 2003, vol. 1, p. 1271 - 1277. Abstract  Download: P273.pdf (207.47 KB)
J. J. Garcia, U. Cortijo, J. Ureña, Á. Hernández, M. Mazo, and J. A. Jimenez, “Comparación de métodos para la elaboración de mapas en entornos de robots móviles mediante ultrasonidos (II)”, Revista Española de Electrónica, no. 588, p. 50-55, 2003.
Á. Hernández, “Aplicación de arquitecturas reconfigurables al diseño de sistemas sensoriales ultrasónicos”, 2003.
J. J. Garcia, U. Cortijo, J. Ureña, Á. Hernández, M. Mazo, and J. A. Jimenez, “Comparación de métodos para la elaboración de mapas en entornos de robots móviles mediante ultrasonidos (I)”, Revista Española de Electrónica, no. 587, p. 74-80, 2003.
J. R. Perez, M. C. del Perez, Á. Hernández, J. Ureña, M. Mazo, and J. J. Garcia, “Desarrollo de herramientas de software para un procesador específico de señal ultrasónica”, Eurofach Electrónica, no. 324, p. 55-61, 2003.
Á. Hernández, J. Ureña, A. Ochoa, M. Mazo, J. J. Garcia, and I. Bravo, “Sistema Escalable para Tratamiento de Señales Sensoriales”, in III Jornadas sobre Computación Reconfigurable y Aplicaciones (JCRA’03), Madrid, España, 2003, vol. 1, 1 vol., p. 275-282. Download: sistema_escalable_para_tratamiento_de_senales_sensoriales-JCRA-HERNANDEZ03_.pdf (384.66 KB)
A. Ochoa, Á. Hernández, J. Ureña, J. J. Garcia, and M. Mazo, “Sistema Generico Especificado en VHDL para Codificacion y Procesamiento de Señales Sensoriales”, in IV Congreso Internacional de Ciencias de la Computacion (ENC’03), Tlaxcala, Mexico, 2003, vol. 1, 1 vol., p. 97-102. Download: Sistema_generico_especificado_en_VHDL_para_codificacion_y_procesamiento_de_senales_sensoriales-TCR-OCHOA04.pdf (318.39 KB)
J. Pastor, et al., “Sistema de información para estaciones ferroviarias con supervisión remota.”, Eurofach Electrónica, no. 319, p. 57-61, 2003.
Á. Hernández, et al., “Real-time implementation of an efficient Golay correlator (EGC) applied to ultrasonic sensorial systems”, Microprocessors and Microsystems, vol. 27, no. 1, p. 397-406, 2003. Download: a2003.pdf (692.86 KB)
J. J. Garcia, et al., “Automatización de la gestión de líneas ferroviarias”, Eurofach Electrónica, no. 322, p. 55-61, 2003.
2002
I. Bravo, Á. Hernández, J. L. Lazaro, J. Ureña, and M. Pérez, “Estudio de FPGA's de Xilinx para reconfiguración total.”, Revista Española de Electrónica, vol. 569, Mensual vol., p. 78-88, 2002.
Á. Hernández, I. Bravo, J. J. Garcia, J. Ureña, M. Mazo, and J. L. Lazaro, “Arquitecturas y aplicaciones de la computación configurable”, Revista Española de Electrónica, no. 572 -573, p. 50-56, 2002.
2001
E. L. Guillén, M. Marron, I. Bravo, M. S. Escudero, A. Gardel, and Á. Hernández, Fundamentos de Electrónica. Madrid: , 2001, p. 184.
2000
L. M. Bergasa, et al., Aplicaciones con circuitos electrónicos digitales. Madrid: , 2000, p. 314.
J. M. Villadangos, et al., MC68000: Herramientas de desarrollo y aplicaciones. Madrid: , 2000, p. 346.
1999
J. Ureña, E. Bueno, M. Mazo, J. J. Garcia, and Á. Hernández, “Classification of Reflectors with an Ultrasonic Sensor for Mobile Robot Applications”, Robotics and Autonomous Systems, vol. 29, no. 4, p. 271-280, 1999. Download: Robotics_and_Autonomous_Systems_1999.pdf (2.03 MB)
J. Ureña, M. Mazo, J. J. Garcia, Á. Hernández, and E. Bueno, “Correlation Detector Based on a FPGA for Ultrasonic Sensors”, Microprocessor and Microsystems, vol. 23, no. 1, p. 25-33, 1999. Download: a1999.pdf (1.37 MB)
1998
J. Ureña, M. Mazo, J. J. Garcia, E. Bueno, Á. Hernández, and D. Hernanz, “Low-cost Improvement of an Ultrasonic Sensors and its Characterization for Map-Building”, in IFAC Workshop on Intelligent Components for Vehicles (ICV'98), Sevilla, España, 1998, vol. 1, p. 333-338. Abstract  Download: ica08.pdf (3.91 MB)

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