Universitat Politècnica de Catalunya
Now showing items 111-130 of 346
La monitorización del grado de maduración es un tema de gran relevancia en la industria frutícola. En esta tesis doctoral se ha estudiado la viabilidad de utilizar una nariz electrónica como instrumento para monitorizar ...
Mobile subscriber positioning is an issue in permanent revision due to the new possibilities of relation that the knowledge of the position introduces, among users and an increasing number of devices. This problem is boarded ...
This thesis presents reconfigurable microwave discriminators used for the development of reconfigurable measurement circuits with high miniaturization, low power consumption, reduced weight and cost. The concept is ...
Wireless sensor networks are developed to monitor areas of interest with the purpose of estimating physical parameters or/and detecting emergency events in a variety of military and civil applications. A wireless sensor ...
The modern power grid is facing major challenges in the transition to a low-carbon energy sector. The growing energy demand and environmental concerns require carefully revisiting how electricity is generated, transmitted, ...
Water is the most important resource for living on planet Earth, covering more than 70% of its surface. The oceans represent more than 97% of the planet total water and they are where more than the 99.5% of the living ...
This Ph.D. thesis addresses remote sensing of the atmosphere by means of lidar and S-band clear-air weather radar, and related data signal processing. Active remote sensing by means of these instruments offers unprecedented ...
This thesis aims at exploring the limits of low peak-power, low-cost, all-semiconductor, compact lidars (laser radars) for range-resolved remote sensing of atmospheric aerosols and clouds. The systems investigated are based ...
(English) Earmarked as the revolutionary 5G key enabler, Network Slicing (NS) is the embodiment of the concept of running multiple logical networks as virtually independent business operations on a common physical ...
Triggered by emerging services such as high-definition video distribution or social networking, the IP traffic volume has been exponentially increasing to date. Furthermore, the traffic growth rate will not stop here due ...
The first three of a series of new generation satellites operating at L-band microwave frequencies have been launch in the last decade. L-band is particularly sensitive to the presence of water content in the scene under ...
El trabajo se divide en tres partes: 1) estudio sintético de las técnicas de calculo de los efectos de las fluctuaciones aleatorias del índice de refracción inducidas por la turbulencia atmosférica en la propagación de ...
Deep learning has affected the speech processing and generation fields in many directions. First, end-to-end architectures allow the direct injection and synthesis of waveform samples. Secondly, the exploration of efficient ...
Introduction of wireless communications systems in railway communications are at the origin of this thesis. Ifercat, the company in charge of the development of Línia 9 of Barcelona Metro, decided that wireless systems ...
El estudio de la medida de la salinidad del océano junto con la humedad del terreno constituyen dos de las aplicaciones más importantes dentro del mundo de la teledetección que no han sido estudiadas hasta la fecha. ...
During the recent years, a huge augmentation of the data traffic volume has been noticed, while a further steep increase is expected in the following years. As a result, questions have been raised over the years about the ...
Mobile data offloading has been proposed as a solution for the network congestion problem that is continuously aggravating due to the increase in mobile data demand. The concept of offloading refers to the exploitation of ...
Energy has been emerged as a first-class computing resource in modern systems. The trend has primarily led to the strong focus on reducing the energy consumption of data centers, coupled with the growing awareness of the ...
In the last few years, a lot of effort has been put into the development of the fifth generation of cellular networks (5G). Given the vast heterogeneity of devices coexisting in these networks, new approaches have been ...
Esta tesis estudia sistemas Machine-to-Machine (M2M) en los que se ejecutan tareas de manera autónoma sin, o con mínima intervención humana. Los sistemas M2M están formados por dispositivos desplegados en un entorno que ...
