Exploració per altres contribucions "Nájar Martón, Montserrat"
Ara es mostren els items 1-17 de 17
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Compressive sensing based candidate detector and its applications to spectrum sensing and through-the-wall radar imaging
(Universitat Politècnica de Catalunya, 2014-03-07)
Tesi
Accés obertSignal acquisition is a main topic in signal processing. The well-known Shannon-Nyquist theorem lies at the heart of any conventional analog to digital converters stating that any signal has to be sampled with a constant ... -
Deep reinforcement learning and signal processing applications for investment strategies
(Universitat Politècnica de Catalunya, 2021-02)
Treball Final de Grau
Accés obertEn este proyecto miramos los fundamentos de las Finanzas, del Deep Reinforcement Larning, y del procesado de señal para construir una estrategia de inversión en bolsa. El estudio parte de un desarrollo hecho por otra ... -
Development and optimization of a simulation framework for data fusion in hybrid localization systems
(Universitat Politècnica de Catalunya, 2015-07-21)
Treball Final de Grau
Accés obert
Realitzat a/amb: Karlsruher Institut für Technologie. Institut für Technik der InformationsverarbeitungIn this project a simulation tool for the Decawave system has been done. The tool is able to accept all the necessary information of the environment in order to do a proper simulation and then is able to estimate the ... -
Estimación conjunta de TOA y DOA en sistemas UWB para localización
(Universitat Politècnica de Catalunya, 2009-06)
Projecte/Treball Final de Carrera
Accés obertEl objetivo de este proyecto es el diseño de un algoritmo de localización para sistemas con tecnología Ultra-Wideband (UWB). -
Low rank approximation techniques for Graph Based Clustering
(Universitat Politècnica de Catalunya, 2019-05-31)
Projecte Final de Màster Oficial
Accés obertClustering analysis is one of the main tools for exploratory data analysis, with applications from statistics, image processing, biology to social sciences. Generally, it isue data process to and meaning ful structure, ... -
Machine Learning based Localization in 5G
(Universitat Politècnica de Catalunya, 2023-05-23)
Treball Final de Grau
Accés obertThis works proposes location estimation in 5G systems using Reconfigurable Intelligent Surfaces (RIS) to optimize positioning accuracy where LOS is obstructed. Machine Learning techniques are considered for the optimization ... -
Next generation positioning in 5G
(Universitat Politècnica de Catalunya, 2021-10-25)
Treball Final de Grau
Accés obertThis thesis is a study of the 5G technologies evaluating a specific case of 5G positioning and mapping. Hence, the main purpose of this project is to improve and study a previous work where a 5G positioning and mapping is ... -
Optimal linear shrinkage corrections of sample LMMSE and MVDR estimators
(Universitat Politècnica de Catalunya, 2012-07-05)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] This master thesis proposes optimal shrinkage estimators that counteract the performance degradation of the sample LMMSE and sample MVDR methods in the regime where the sample size is small compared to the observation ... -
Position estimation for IR-UWB systems using compressive sensing
(Universitat Politècnica de Catalunya, 2016-07-12)
Treball Final de Grau
Accés obertRecently, a growing interest in precise indoor wireless locating systems has been observed. Indoor environments are typically complex wireless propagation channels with numerous multi-paths created by closely spaced ... -
Position estimation for IR-UWB systems using compressive sensing
(Universitat Politècnica de Catalunya, 2016-07-12)
Treball Final de Grau
Accés obertUltra-Wideband (UWB) technology, thanks to its high time resolution, arises as an excellent candidate to provide accurate positioning information in cluttered environments. However, the dense multipath and strong attenuation ... -
Positioning using compressed sensing in 5G
(Universitat Politècnica de Catalunya, 2021-10-25)
Treball Final de Grau
Accés obertThe mobile communications sector has seen tremendous growth in recent years which has led to a huge demand for mobile data. This demand will require new technologies that can offer the sufficient capacity that the sector ... -
Shrinkage corrections of sample linear estimators in the small sample size regime
(Universitat Politècnica de Catalunya, 2016-11-11)
Tesi
Accés obertWe are living in a data deluge era where the dimensionality of the data gathered by inexpensive sensors is growing at a fast pace, whereas the availability of independent samples of the observed data is limited. Thus, ... -
Sparse channel estimation based on compressed sensing theory for UWB systems
(Universitat Politècnica de Catalunya, 2010-12-23)
Projecte Final de Màster Oficial
Accés obertCatalà: L'estimació de canal en receptors wireless esdevé un factor determinant a l'hora de incrementar les prestacions dels sistemes sense fils per tal de satisfer les exigències cada vegades més elevades dels consumidors ... -
Sparse covariance fitting for source location
(Universitat Politècnica de Catalunya, 2012-09-07)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] This master thesis proposes a new algorithm for finding the angles of arrival of multiple uncorrelated sources impinging on a uniform linear array of sensors. The method is based on sparse signal representation ... -
Subset selection in signal processing using sparsity-inducing norms
(Universitat Politècnica de Catalunya, 2017-07-22)
Tesi
Accés obertThis dissertation deals with different subset selection problems in wireless communications systems. These type of problems have a combinatorial nature, which makes them computationally intractable for medium and large-scale ... -
UWB for medical applications
(Universitat Politècnica de Catalunya, 2015-10)
Treball Final de Grau
Accés obertThe respiratory frequency monitoring is an important indicator to the medical field. Also, the need of sensor system solutions for home monitoring is growing as the life expectancy of the world population is increasing. ... -
UWB Radar for health monitoring applications
(Universitat Politècnica de Catalunya, 2016-10)
Treball Final de Grau
Accés obertThe respiratory frequency is an important indicator in the medicine field that becomes more relevant in patients that must be monitored. Due to the global increase in the live expectancy, this number of patients also ...
