Now showing items 21-35 of 35

    • Estudi del consum energètic de convertidors analògic-digital integrats en microcontroladors 

      Singh, Mandeep; Merchan Holmes, Jose Francisco (Universitat Politècnica de Catalunya, 2019-07-29)
      Bachelor thesis
      Open Access
      Microcontrollers are programmable integrated circuits designed to control any particular application. Nowadays are present in many of the electronic devices that surround us: at work, at home and in our life in general. ...
    • Estudio de sistemas de beamforming analógico-digitales 

      Piqué Muntané, Ignasi (Universitat Politècnica de Catalunya, 2018-07-02)
      Bachelor thesis
      Open Access
      Covenantee:   Universitat Carlos III de Madrid
      En el presente proyecto se han estudiado y simulado sistemas que implementen técnicas propias del 5G. Debido a que el mundo de las comunicaciones móviles está en plena revolución con la instauración de esta nueva tecnología, ...
    • Estudio e implementación de un convertidor analógico digital y digital analógico Sigma delta 

      Castro Rios, Ramiro Saito (Universitat Politècnica de Catalunya, 2015-10)
      Bachelor thesis
      Open Access
      Este proyecto está basado en el estudio de convertidores digital analógico y analógico digital sigma delta. En un principio se estudian los conocimientos previos sobre la conversión analógico-digital y digital-analógico, ...
    • Experimental characterization of the energy consumption of ADC embedded into microcontrollers operating in low power 

      Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Restricted access - publisher's policy
      This work aims to experimentally characterize the energy consumption of analog-to-digital converters (ADC) embedded into microcontroller units (MCU) operating in low power for autonomous sensor applications. The study ...
    • FPGA-based control system for a chemical gas sensor 

      Salamó Palau, Martí (Universitat Politècnica de Catalunya, 2019-06)
      Bachelor thesis
      Open Access
      The objective of this thesis is to design, develop and validate a digital system which controls a metal-oxide (MOX) chemical gas sensor. The system is based on sigma-delta modulation and implements a control of the surface ...
    • Incremental sigma delta ADC modulator and digital filter co-design 

      Baudino Forte, Juan Jose (Universitat Politècnica de Catalunya, 2024-02-09)
      Master thesis
      Open Access
      This thesis presents a mixed signal methodology for the design and verification of an incremental ADC and digital filter to be used in Li-Ion battery management systems. Incremental ADCs are a type of Nyquist rate converters ...
    • Parameter estimation of a single-phase boost PFC converter with EMI filter based on an optimization algorithm 

      Rojas Dueñas, Gabriel; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel (2021-05-21)
      Article
      Open Access
      This paper proposes an approach to estimate the parameters of an AC–DC boost power factor corrector converter that includes an EMI filter. To this end, once the topology was known, the values of the passive elements were ...
    • Placa de desarrollo con microcontrolador, lógica programable, comunicaciones y conversión AD/DA 

      Cáceres Calvente, Rafael (Universitat Politècnica de Catalunya, 2017-05)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      The aim of the project is the design, assembly and testing of a high-speed data acquisition system for measuring ultrasonic signals in range of 5 MHz, which meets the needs of the Sensor Systems Group (GSS). In addition, ...
    • Programmable digital front-end for lock-in amplifier 

      Eguiburu Ferrer, Marc (Universitat Politècnica de Catalunya, 2023-07-04)
      Bachelor thesis
      Open Access
      This project aims to create a flexible digital front-end for controlling a lock-in amplifier in a new magnetic field sensory system. This magnetic field is modulated to high frequencies to reduce noise and interference and ...
    • Reducción de la frecuencia de muestreo en los conversores ADC y DAC usados en predistorsionadores digitales 

      Montoro López, Gabriel; Wang, Teng; López Bueno, David; Ruiz, María Nieves; García, José Angel; Gilabert Pinal, Pere Lluís (Unión Científica Internacional de Radio (URSI), 2015)
      Conference report
      Restricted access - publisher's policy
      With the increasing demands for higher data rate, wider signal bandwidth is required, and this imposes high sampling rate converters in the communications equipment. This paper provides and analyzes experimental results ...
    • Signal acquisition and pre-processing subsystem for CW-FM radars 

      Hernández Burgos, Sergi (Universitat Politècnica de Catalunya, 2018-07)
      Bachelor thesis
      Restricted access - confidentiality agreement
      High resolution radar performance is critically affected by the quality of signal acquisition and first level processing subsystems which implement a filter mached to the transmitted waveform. In the case of CW-FM radars, ...
    • Space vector modulation technique for 3-level NPC converter with constant switching frequency 

      Ouerdani, Imen; Ben Abdelghani, Hafedh; Ben Abdelghani, Afef Bennani; Montesinos Miracle, Daniel; Slama-Belkhodja, Ilhem (HINDAWI, 2016-07-15)
      Article
      Open Access
      This paper presents a simple Space Vector Modulation (SVM) methodology for a three-level NPC converter. Nearest three vectors (NTV) and corresponding duty cycles are deduced through simple generic mathematical expressions. ...
    • The Unit control of an acquisition system for ocean bottom seismometer (OBS) 

      Carreras Pons, Normandino; Roset Juan, Francesc Xavier; Shariat Panahi, Shahram; Artero Delgado, Carola; Manuel Lázaro, Antonio; Owen, Tim; Antonijuan Rull, Josefina (IEEE, 2012)
      Conference report
      Restricted access - publisher's policy
      In this paper we talk about an acquisition system for seismic data. The Ocean Bottom Seismometer (OBS) is equipment designed to obtain the seismic marine data from the seabed. The main part of this paper is based in an ...
    • Timer-based Demodulator for AM Square Signals coming from Sensor Circuits 

      Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Restricted access - publisher's policy
      This work evaluates the performance of a timerbased demodulator applied to low-frequency amplitudemodulated (AM) square signals coming from sensor circuits. The demodulator extracts the amplitude of the AM square signal ...
    • Towards a capacitive bee counter: sensor development and signal processing 

      Mollá Munilla, Luís Francisco (Universitat Politècnica de Catalunya, 2019-10-03)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Politecnico di Milano
      This master’s thesis presents the first stages of a project which aims to build an accurate and efficient capacitive bee-counter, a device that can count the number of bees entering or exiting a hive. This device has an ...