Browsing by Subject "Artificial satellites in telecommunication"
Now showing items 1-20 of 210
-
20/30 GHz front-end for the TMS-7 receiving station of the OLYMPUS satellite
(1989)
Conference report
Open AccessThe authors present the 20/30-GHz front-end of the TMS-7 station for performing the measurement of the flux density of one or more signal carriers received from the OLYMPUS satellite. The front-end is composed of two ... -
3Cat-1: a multi-payload Cubesat-based scientific and technology demonstrator
(European Spatial Agengy (ESA), 2014)
Conference lecture
Open Access -
3Cat-1: Attitude determination and control subsystem design
(Universitat Politècnica de Catalunya, 2013-12-10)
Bachelor thesis
Open Access[ANGLÈS] This project is focused on the design and implementation of an attitude control system for the satellite 3Cat-1. Using a passive system cwith permanent magnets and an active system, consisting of a coil as actuator. -
3CAT-3/MOTS, an experimental nanosatellite for multispectra and GNSS-R Earth Observation: Mission concept and analysis
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyThe 3 Cat-3/MOTS mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech (UPC) to foster new and innovative technologies on ... -
A 3D printed lens antenna for 5G applications
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Open AccessA switchable multi-antenna architecture for lens-assisted beamsteering in the Ka-band region allocated for 5G communications (24-30 GHz) is proposed. The radiating elements are bow-tie antennas mounted with a 3D printed ... -
A case study on the communications subsystem for cubesat
(Universitat Politècnica de Catalunya, 2014-06-09)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Universidade de FortalezaDue to the overwhelming increment transmission and reception of information around the world, Satellite Communications have become an essential application in our lives. Proof of this, are the continuous investments made ... -
A Cross-layer architecture for DVB-S2 Broadband Satellite systems with QoS support
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Conference report
Restricted access - publisher's policyIn this paper we propose an architecture to provide Quality of Service (QoS) guarantees for DVB-S2 broadband satellite systems. The proposed architecture provides low complexity on its implementation and can seamlessly ... -
A design strategy for phase synchronization in precoding-enabled DVB-S2X user terminals
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThis paper address the design of a phase tracking block for the DVB-S2X user terminals in a satellite precoding system. The spectral characteristics of the phase noise introduced by the oscillator, the channel, and the ... -
A Ground Station software framework and telemetry management system for Nano-satellite missions
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Open Access -
A multi-agent adaptive protocol for femto-satellite applications
(Universitat Politècnica de Catalunya, 2011-07-15)
Bachelor thesis
Open AccessFemto-satellites are a very promising category of satellites that weigh less than 100 grams. Also, a Pico-Rover it is a self-contained robot that weighs less than 1 kilogram and its motion works by rolling the external ... -
A multi-agent payload management approach for femtosatellite applications
(Universitat Politècnica de Catalunya, 2011-09-21)
Master thesis
Open AccessThe reduction in size of electronic components makes feasible really small satellites like Femtosatellites with are less than 100 grams of mass. The main advantage of this kind of satellite is the multipoint of view when ... -
A new design of high precision solar microsensor for satellite aplications
(IEEE, 2010)
Conference report
Restricted access - publisher's policyThis paper shows the design and calibration of an improved miniaturized two-axis sun sensor for satellite attitude control. The proposed new structure is based on a previous sun sensor structure by adding multiple sensing ... -
A novel dissemination protocol to deploy opportunistic services in federated satellite systems
(Institute of Electrical and Electronics Engineers (IEEE), 2020-08-03)
Article
Open AccessThe Earth Observation community is demanding new satellite applications that cover the need of monitoring different areas with high spatial resolution and short revisit times. These applications will generate huge amounts ... -
A scalable distributed autonomy system for fractionated satellite missions
(Universitat Politècnica de Catalunya, 2016-02-11)
Bachelor thesis
Open AccessCurrent trends in space systems are towards the design of autonomous spacecraft that are capable to generate their own plans of action based on system constraints, on-board data analysis and mission goals set by ground ... -
A shared CubeSat and LEO constellation for quantum key distribution service and 5G IoT service: QUANGO project overview and design considerations
(International Astronautical Federation, 2021)
Conference report
Restricted access - publisher's policySecure and reliable exchange of data and information plays a crucial role in our society, for example protecting money transfers, commercial transactions, medical data, remote control of sensible infrastructures, etc. ... -
Accurate phase synchronization for precoding-enabled GEO multibeam satellite systems
(Institute of Electrical and Electronics Engineers (IEEE), 2024)
Article
Open AccessSynchronizing the local oscillators in multibeam satellites with the objective of coherent communications is still an open challenge. It has to be addressed to implement full-frequency reuse approaches, such as precoding ... -
Adaptive beam pattern selection and resource allocation for NOMA-based LEO satellite systems
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Conference report
Open AccessThe low earth orbit (LEO) satellite system is one of the promising solutions to provide broadband services to a wide-coverage area for future integrated LEO-6G networks, where users' demands vary with time and geographical ... -
Adaptive IP scheduler design to support QoS guarantees over satellite systems
(2012-06)
Article
Open AccessThis paper presents an adaptive algorithm for man-aging the weight values of the Weighted Round Robin (WRR)scheduler to provide End-to-End (E2E) Quality of Service (QoS)guarantees for Broadband satellite ... -
Adaptive optics without wave-front sensor using the APHEFIS (Adaptive Optics by Phase Estimation from Focal Intensity Speckles) algorithm
(Universitat Politècnica de Catalunya, 2012-07-19)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] Compensation of the distorsions introduced to the optical wavefronts by the atmosphere using the algorithm APHEFIS, developed by Dr. Dirk Giggenbach. -
Advanced interference mitigation techniques for the forward link of multi-beam broadband satellite systems
(2011)
Conference report
Restricted access - publisher's policyHigh throughput satellite systems are expected to rely in the user link on multi-beam architectures with small beam footprints and strong frequency reuse among beams, and will therefore operate in an interference limited ...