A. Rocha

Publications33
h-index5
Citations98
Highly Influential Citations4
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Large Scale Assessment of Ka/Q band atmospheric channel across Europe with ALPHASAT TDP5: A new propagation campaign
The ever growing demand for higher data rates in satellite based services along with the congestion of the lower part of the frequency spectrum has led to the migration of new services to higher… Expand
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Two XPD frequency scaling models using quasi-physical parameters to characterize Earth satellite propagation channel
Attenuation and depolarisation of the tropospheric propagation channel are limiting factors conditioning link availability for systems using frequency reuse. The depolarisation behaviour of the… Expand
  • 3
  • 1
Quantification and mapping of urban fluxes under climate change: Application of WRF‐SUEWS model to Greater Porto area (Portugal)
&NA; Climate change and the growth of urban populations are two of the main challenges facing Europe today. These issues are linked as climate change results in serious challenges for cities. Recent… Expand
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  • 1
Thermal model for optical fiber coating under tight bending diameters
In this work we investigate the temperature variation of optical fibers in the presence of high optical power propagation and tight bending. A theoretical model for the optical fiber coating… Expand
  • 3
  • 1
Evaluation of the fuse effect propagation in networks infrastructures with different types of fibers
The evaluation of the fuse effect propagation in fiber networks is analyzed. We show a relation between the void interval, the power density and the fused effect velocity for different types of… Expand
  • 16
Simulation of fiber fuse effect propagation
In this work, we present the simulation results of the fiber fuse effect propagation, using a one-space-dimensional model. This approach has the advantage of reducing the simulation time. The… Expand
  • 9
Separation of rain and ice contributions for depolarization at Ka band
The paper addresses the separation of ice and rain contributions for crosspolar discrimination in Earth Satellite slant path Satellite-Earth propagation channel using single polarized crosspolar… Expand
  • 5
Raman amplification in high 10 Gbit/s and 40 Gbit/s packet optical networks
Packet traffic will dominate the future optical networks. In this work we experimentally access the impact of Raman amplification on 10 Gbit/s and 40 Gbit/s packet traffic performances. For a 10… Expand
  • 3
Earth-satellite ice depolarization revisited: New data
Depolarization has not been seen as an important impairment for Ka band (and above) telecommunication systems due to increased rain attenuation with respect to Ku-band. The most important databases… Expand
  • 2
Halting the fuse discharge propagation using optical fiber microwires.
We report and analyze the halting of the fuse effect propagation in optical fiber microwires. The increase of the mode field diameter in the tapered region decreases the optical intensity resulting… Expand
  • 5
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