Browsing by Subject "Electromagnetisme"
Now showing items 1-9 of 9
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A comprehensive sounding of the ionospheric HF radio link from Antarctica to Spain
(Radio Science, 2013. Vol.48, 1, Gener - Febrer, 2013-01)Since 2003, our group has been investigating the performance of different transmission techniques for low-power low-interference High Frequency (HF) ionospheric communication systems. Specifically, we ... -
Design and Validation of Probes and Sensors for the Characterization of Magneto-Ionic Radio Wave Propagation on Near Vertical Incidence Skywave Paths
(Sensors. 2019. Vol. 19, No. 11, 2019-06)This article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below ... -
Interannual Variation of a 12,760 km Transequatorial Ionospheric Channel Availability and Its Dependence on Ionization
(1st International Electronic Conference on Atmospheric Sciences, 2016-07-15)The ionosphere provides a channel able for long-haul and Non-Line-Of-Sight (NLOS) communications. Nonetheless, the amount of ionization depends on the Sun activity, whose diurnal and seasonal cycles ... -
NVIS Multicarrier Modulations for Remote-Sensor Applications
(Sensors, 2020, Vol. 20, No. 21, 2020-10)The number of Internet of Things (IoT) devices has experienced a large growth during the last decade, as well as the data volume gathered from remote sensors. Satellites are still a suitable communication ... -
Physical Layer Definition for a Long-Haul HF Antarctica to Spain Radio Link
(Remote Sensing. 2016. Vol.8 No.5 (Maig), 2016-05)La Salle and the Observatori de l’Ebre (OE) have been involved in a remote sensing project in Antarctica for the last 11 years. The OE has been monitoring the geomagnetic activity for more than twenty ... -
Physical Layer Definition for a Long-Haul HF Antarctica to Spain Radio Link
(Remote Sensing. 2016. Vol.8 No.5 (Maig), 2016-05)La Salle and the Observatori de l’Ebre (OE) have been involved in a remote sensing project in Antarctica for the last 11 years. The OE has been monitoring the geomagnetic activity for more than twenty ... -
Radio communication via Near Vertical Incidence Skywave propagation: an overview
(Telecommunication Systems. 2017, Vol. 66, 2017-02)Near Vertical Incidence Skywave (NVIS) propagation can be used for radio communication in a large area (200 km radius) without any intermediate man-made infrastructure. It is therefore especially suited ... -
Sensing System for Remote Areas in Antarctica
(Radio Science, 2020, Vol.55 No 3, 2020-02)Every year, the number of Internet of Things devices is growing exponentially. The current Internet of Things technology to support the connectivity of such a huge number of devices is limited by the ... -
Variation of Ionospheric Narrowband and Wideband Performance for a 12,760 km Transequatorial Link and Its Dependence on Solar and Ionospheric Activity
(Remote Sensing, 2020, Vol.12 no 17, 2020-08)The ionosphere provides a channel that is able to propagate electromagnetic waves for long-haul communications, allowing Non-Line-Of-Sight (NLOS) radio communications in the high-frequency band (HF). ...