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Global Navigation Satellite Systems Reflectometry (GNSSR) is now being recognized as a powerfull tool for remote sensing. With the addition of new frequency bands and codes, it is possible to increase the resolution and accuracy of the measurements. GPS L5 and Galileo E5 bands are becoming popular because of the open codes, with wider bandwidths than the L1 band ones. However, these bands are shared...
The number of applications based on Global Navigation Satellite Systems (GNSS) has been increasing in last years. In the passive remote sensing field, GNSS-Reflectometry (GNSS-R) systems have been revealed as cost-effective solutions to retrieve a number of geophysical parameters. However, GNSS-based devices are prone to suffer from Radio-Frequency Interference (RFI) effects due to the extreme low...
For the launch of intelligent transport systems (ITS), it is necessary to have detailed understanding of their performance. The draft standard IEEE 802.11p is the physical and medium access control layer (PHY/MAC) standard extension for wireless access in vehicular communications to IEEE 802.11. In order to evaluate its performance, we carried out an infrastructure-to-vehicle trial on a highway using...
GNSS systems, especially GPS, have become an essential tool for ubiquitous and mobile applications. Recently, the proliferation of these standards (GPS L2 and L5, Galileo, Glonass) makes the choice of a concrete one a difficult task. On the other hand, a multistandard system may have great advantages for location-aware devices especially regarding universal coverage. Using a SDR approach, the aim...
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