Browsing by Subject "Digital modulation"
Now showing items 1-20 of 21
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100 Gbit/s Transmission using Orthogonal Double Subcarrier Polarization Multiplexed QPSK
(Universitat Politècnica de Catalunya, 2010-03)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Covenantee: Danmarks tekniske universitetThe present thesis has been devoted to the study of optical transmissions at 100 Gbps with coherently detected QPSK signals taking advantage of polarization multiplexing. Two di erent systems have been investigated: single ... -
A vectorization of synchronization algorithms for OFDM systems
(Universitat Politècnica de Catalunya, 2009-04-28)
Master thesis (pre-Bologna period)
Open AccessL'objectiu d'aquest projecte és doble. Per una banda, es tracta de crear una llibreria en C++ que ens permeti simular implementacions d'algoritmes en DSP vectorials (que poden realitzar la mateixa operació sobre diverses ... -
Comparison of the Achievable Rates in OFDM and Single Carrier modulations with I.I.D. Inputs
(Universitat Politècnica de Catalunya, 2016-02-06)
Master thesis (pre-Bologna period)
Open AccessStudy based on the original article of the same name. Within concave / convex function of mutual information is studied, in order to apply the results on two different digital modulation techniques (Single-Carrier and ... -
Comunicaciones II : ejercicios resueltos
(Edicions UPC, 2005)
Book
Restricted access to the UPC academic communityEste material constituye una recopilación de problemas de examen, resueltos por los profesores de la asignatura Comunicaciones 2, impartida en el segundo curso de los estudios de Ingeniería Técnica Superior de Telecomunicaciones ... -
Design and implementation of a radio wake up reciber
(Universitat Politècnica de Catalunya, 2018-06)
Bachelor thesis
Restricted access - confidentiality agreementWi-Fi is the facto standard protocol for most indoor personal communication devices. Despite this, its usage in IoT solutions is limited, mainly due to the high cost and elevated power consumption of Wi-Fi transceivers. ... -
Design and performance comparison of a superregenerative MPSK transceiver
(2015)
Conference lecture
Open AccessIn this paper we present a superregenerative transceiver able to switch among BPSK, QPSK and 8PSK modulations. An HF-band proof-of-concept transceiver is implemented on an FPGA with a minimum of analog circuitry. The ... -
Disseny d'un sistema de control amb FPGA per actuadors piezoelèctrics
(Universitat Politècnica de Catalunya, 2009-10)
Master thesis (pre-Bologna period)
Open AccessEn aquest projecte s’expliquen quines són les propietats de l’efecte piezoelèctric i quines són les seves aplicacions en l’actualitat. Amb aquesta base es parteix a examinar de quines maneres es pot realitzar el control ... -
Disseny i implementació d'un transceptor super-regeneratiu QPSK
(Universitat Politècnica de Catalunya, 2013-07-05)
Master thesis
Open Access[ANGLÈS] This project consists on the design and the implementation of a radio frequency transceiver. A transceiver is a device which is able to be a transmitter and a receiver and, therefore, it is suitable for commuting ... -
Evaluation of indoor VLC positioning
(Universitat Politècnica de Catalunya, 2019-08)
Bachelor thesis
Restricted access - confidentiality agreement -
Implementación de un transponder 64QAM en FPGA mediante Simulink
(Universitat Politècnica de Catalunya, 2016-09)
Bachelor thesis
Open AccessThe current evolution of communication systems has been driven by the high demand of resources that are needed to satisfy services which are dependent of the network. To contain the high requirements of current and emerging ... -
Investigación de la tolerancia al crosstalk de los sistemas OFDM ópticos
(Universitat Politècnica de Catalunya, 2015-10-30)
Master thesis (pre-Bologna period)
Open AccessThis project aims to investigate the impact of crosstalk in optical OFDM modulation under ideal conditions, i.e. without losses, phase noise or nonlinear effects. In order to get it we will analyze deeply how the OFDM works ... -
Investigation on Nyquist Modulation for Fiber-Optic Communications
(Universitat Politècnica de Catalunya, 2015-07)
Bachelor thesis
Restricted access - author's decisionIn a society where the need for communication is increasing every day, an improvement in spectral efficiency and faster data transmission methods are needed. This thesis analyses a new modulation, the Nyquist modulation, ... -
Joint symbol and chip synchronization for a burst-mode-communication superregenerative MSK receiver
(2017-01-05)
Article
Open AccessIn this paper we describe a superregenerative (SR) MSK receiver able to operate in a burst-mode framework where synchronization is required for each packet. The receiver is based on an SR oscillator which provides samples ... -
MIMO-OFDM: Channel Shortening
(Universitat Politècnica de Catalunya / Beijing Institute of Technology, 2013-07-31)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Beijing gong ye xue yuan[ANGLÈS] The study begins with the Multi-carrier modulation, to study the behavior OFDM with MIMO. Ends with an extensive study of the different methods used to implement the technique known as Channel Shortening. -
Modelado de circuitos de audio analógicos para plug-ins VST, AU
(Universitat Politècnica de Catalunya, 2022-07-20)
Bachelor thesis
Open AccessModelado no lineal de circuitos analógicos de efectos de audio, para ser utilizados a tiempo real como sustituto de dispositivos físicos tales como amplificadores y pedales de efectos. Implementando DK method para ... -
A proof-of-concept superregenerative QPSK transceiver
(2014)
Conference lecture
Open AccessIn this paper we present a description and experimental verification of an HF-band proof-of-concept superregenerative transceiver for QPSK signals. We describe a simple implementation of an all-digital, FPGA-based, QPSK ... -
Robust Tracking System in front of Radio-Frequency Interferences. Part 3: Signals, Modulations, and Reliability analysis
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Open AccessThe aim of this project is to simulate and implement a Robust Tracking System (RTS), capable of tracking a transmitter when Global Position System (GPS) signals are not available, offering high resistance to Radio Frequency ... -
Sistema de generació i recepció per a la mesura de senyals de RF amb modulacions i codificacions digitals
(Universitat Politècnica de Catalunya, 2019-06)
Bachelor thesis
Open AccessThe world of telecommunications is constantly growing and there is an increasing need of systems able to measure the response of new devices to digitally modulated signals. This project develops a remote control system to ... -
A superregenerative QPSK receiver
(2014-01)
Article
Open AccessIn this paper we present a description and experimental verification of a superregenerative receiver (SR) for QPSK signals. Exploiting the fact that a conventional SR generates pulses which preserve the input phase ... -
Superregenerative reception of narrowband FSK modulations
(2015-03-01)
Article
Open AccessIn this paper we investigate the possibilities of narrowband FSK detection using a superregenerative (SR) receiver. Previous SR FM demodulation techniques rely on detecting the amplitude variations caused by the different ...