Roberto Prieto-Cerdeira

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Mesoscale ocean altimetry remains a challenge in satellite remote sensing. Conventional nadir-looking radar altimeters can make observations only along the satellite ground track, and many of them are needed to sample the sea surface at the required spatial and temporal resolutions. The Passive Reflectometry and Interferometry System (PARIS) using Global(More)
Department of Signal Theory and Communications, University of Vigo, Campus Universitario, 36200 Vigo, Spain Centre for Wireless Communications, University of Oulu, 90014 Oulu, Finland Institute of Applied Systems Technology, Joanneum Research, Inffeldgasse 12, 8010 Graz, Austria Wave Interaction and Propagation Section, European Space Research and(More)
The land mobile satellite (LMS) propagation channel is frequently described using statistical models. These models usually make different assumptions regarding the behavior of the direct signal, the diffuse multipath component and the shadowing effects. This paper analyzes the theoretical formulation and implementation of time-series synthesizers based on(More)
For the mobile reception of satellite signals, technologies like antenna diversity and angle diversity have already been evaluated in the field [1]. The MIMOSA project targets the evaluation and modelling of satellite MIMO propagation channels for land mobile users. The project is currently in progress and its full results are expected in the second half of(More)
Standardization activities on digital video broadcasting - satellite services to handheld devices (DVB-SH) have driven the need for a consolidated narrowband channel model. In the DVB-SH system, the satellite broadcasts a signal carrying multimedia services aimed directly to a variety of mobile (handheld or vehicular) and fixed terminals. A 3-state land(More)
1Department of Signal Theory and Communications, University of Vigo, Campus Universitario, 36200 Vigo, Spain 2Centre for Wireless Communications, University of Oulu, 90014 Oulu, Finland 3 Institute of Applied Systems Technology, Joanneum Research, Inffeldgasse 12, 8010 Graz, Austria 4Wave Interaction and Propagation Section, European Space Research and(More)
This paper analyzes and compares the datasets from two land mobile satellite measurement campaigns. One campaign provided data for 17.6 GHz where a transmitter was carried in an aircraft at a link distance of 10 km. In the second campaign the 11.7 GHz beacon signal of the Hotbird satellite (13° E) was measured with a mobile van. Various scenarios(More)
The design and assessment of air interfaces for modern Land Mobile satellite systems between 1 and 4 GHz require the use of reference generative propagation channel models. Among possible generative modeling approaches, the empirical stochastic method has been widely used in the past two decades for its simplicity, reduced number of input parameters and(More)