Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
The aim of this work is related to railway sector and particularly with the introduction of the GNSS (Global Navigation Satellite System) into that environment. More in details, our aim is to evaluate system performance in terms of integrity of the navigation data. In the train control system, the integrity is one of the most challenge feature to achieve. Under that assumption, an algorithm that is...
The study of water systems under multiple stress conditions involves the generation of complex models allowing users to make predictions. Nevertheless an effective monitoring system preventing risks of contamination for relevant water bodies doesn't exist yet. Currently smart integrated aerospace tools revealed high capabilities for “early warning” of critical events and collaborative decision making...
The paper focuses on the introduction of the GNSS technology into the frame of the train control system. The goal of this work is to analyse and compare the existing ionospheric incremental delay models influence on accuracy of On Board Unit (OBU) position to verify the achievable performance by adopting them during the estimation procedure. The performance results will be shown, based on a campaign...
Monitoring of critical phenomena such as water pollution represents one of the most relevant issues that Europeans are worried about. Recent smart integrated systems/tools to support capabilities for “early warning” and collaborative decision making on natural disasters, can successfully be applied to this scope integrating brilliant hi-tech solutions like advanced satellite platforms, swarm intelligence...
The recently allocated 71–76 GHz and 81–86 GHz bands provide an opportunity for realizing Line Of Sight (LOS) links for directional point-to-point “last mile” applications. An efficient use of this spectrum may allow wireless to finally “catch up” with wires, leading to systems such as “multi-Gigabit wireless Ethernet,” and “wireless fiber.” However, the transmission at such a frequency range is characterized...
Nowadays, climate and meteorology assumed a fundamental role in manifold domains with the aim to understand how they affect life in modern society. Such a new sensitivity is the result of a major awareness of the Earth health and the need of better understanding the increasing climatic and meteorological changes recently observed. Actually, in the last years several satellite missions, single and...
This work compares different solutions using Extremely High Frequencies (EHF) for broadband satellite communications. Advantages and drawbacks of each solution are discussed accounting for the most important features needed to achieve very high capacity systems (i.e. multibeam capabilities, bandwidth, signal attenuations and impairments) and the most important features needed for commercial success...
In the last years EHF (Extremely High Frequency / 30-300 GHz) band is acquiring more and more interest in different fields, such as telecommunications, radar applications and Earth observation, due to advantageous characteristics. Actually, the higher operating frequency with respect to traditional ranges (Ka and lower) allows the achievement of some advantages: no crowding in frequency and hence...
Today, Information and Communication Technology (ICT) can be considered mature and, therefore, ready to be applied in other areas where its technological, modeling and architectural results can be effective. Quality of Life (QoL) related research fields can take great advantage from the maturity of ICT. The Center for TeleInFrastruktur (CTIF) and, in particular, its Italian node, is addressing deep...
There are a lot of advantages offered by the use of renewable energy in terms of minimal environmental impact compared to fossil fuels, lower costs and its great role for ensuring the sustainability of human life on planet Earth. Among all sources of renewable energy, solar energy is by far most abundant. One of the most interesting applications of this renewable source could be represented by its...
While cellular and WLAN (Wireless Local Area Networks) at low frequencies (1–5 GHz) constantly struggle with the quasi-saturation of spectrum, the EHF band (30–300 GHz) has huge swathes of band available at no cost. The recently allocated 71–76 GHz and 81–86 GHz bands could represent an opportunity to realise Line Of Sight (LOS) links for directional point-to-point ”last mile” ones. This work focuses...
In the last years Game Theory (GT) has been widely used in wireless technologies to model medium access, power control or resource exchange. In order to have a wider vision of the problem and describe the evolution of such networks, Evolutionary Game Theory (EGT) is currently considered as an important tool. This theory has been applied in biology since the seventies to describe animals' behaviour...
Cardiac diseases represent one of the biggest death causes in modern society. Current therapies, despite their importance, do not give an efficient solution to the problem. However, stem cells research could represent a future hope for a more efficient solution. In particular, there is currently a great interest in myocardial tissue generation from stem cells cultures in 3D bio-active scaffolds. Those...
The recently allocated 71-76 GHz and 81-86 GHz bands provide an opportunity for Line Of Sight (LOS) links for directional point-to-point “last mile” links. An efficient use of this spectrum may allow wireless to finally “catch up” with wires, leading to systems such as “multi-Gigabit wireless Ethernet,” and “wireless fiber.” However, the transmission at such a frequency range is characterized by several...
While cellular and WLAN (Wireless Local Area Networks) at low frequencies (1-5 GHz) constantly struggle with the quasi-saturation of spectrum, the EHF band (30-300 GHz) has huge swathes of band available at no cost. The recently allocated 71-76 GHz and 81-86 GHz bands provide an opportunity for Line Of Sight (LOS) links for directional point-to-point ”last mile” links. This work focuses on the design...
In this paper a review of the possible applications of Information and Communications Technologies (ICT) to the renewable energy sector is presented. Renewable energies are provided by natural resources (sunlight, wind, water, and geothermal heat) through the use of engineering technologies able to collect the energy and to convert it in a more usable form. ICT can play a significant role in this...
The evolution of ICT (Information and Communication Technologies) systems capabilities will result in more increasing autonomy and mobility of ICT devices. In this scenario, Cooperative Multi-Robot / Multi-Sensor systems represent a new generation of ICT systems [1] [2], where mobile physical agents, equipped with sensors and/or actuators, may replace human operators in performing tasks in hazardous...
In this work authors investigate the use of IR (Impulse Radio) UWB (Ultra-Wide Band) technique for satellite communications at frequency bands beyond Q/V bands. In particular, the paper shows how an IR UWB communication system is sensitive to typical hardware non-idealities at those frequency bands and compares its performance with the ones of a more classical continuous wave communications system...
The evolution of ICT (information and communication technologies) systems capabilities will result in more increasing autonomy and mobility of ICT devices. In this scenario, cooperative multi-robot / multi-sensor systems represent a new generation of ICT systems, where mobile physical agents, equipped with sensors and/or actuators, may replace human operators in performing tasks in hazardous or risky...
Since the 70s Italy has had a pioneering approach to higher frequencies, at first at Ka band (20/30 GHz) with the Sirio experience (launched in 1978), when such a range was still a frontier, and then with Italsat F1 and F2 experiments in the 90s, studying Q and V bands in addition to Ka one as well. After those experiences, Italy through the Italian space agency (ASI) was one of the first European...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.