Exemplos de uso de Radio propagation em Inglês e suas traduções para o Português
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Antennas and radio propagation in complex environments.
It has practical importance because it influences,for example, radio propagation on Earth.
Radio propagation tools for ham& shortwave.
The number of these free electrons is sufficient to affect radio propagation.
This thesis proposes an outdoor empirical radio propagation model for uhf band, which is used in digital tv.
DX Toolbox searches the web for you, gathering information on solar andgeomagnetic conditions that affect radio propagation.
The work presents an analysis of radio propagation coverage data in public safety systems, can assist in the choices and decisions of investments in this sector.
This dissertation presents experimental results that allow characterizing the narrow band channel behavior of radio propagation in an urban environment.
In this work, pedestrian models,used to simulate characterization of indoor radio propagation are reproduced, analyzed and compared in different environments with different pedestrian flows.
The winss takes care of creating the corresponding simulation scripts(tcl scripts) and allows the con¿guration of important aspects such as energy model,mobile nodes model, radio propagation model and network fault model.
A main limitation is the transmission mediumitself because the inherently effects of radio propagation such as path loss, frequencyselective fading, Doppler spread and multipath delay-spread.
Due to its link to other kinds of solar activity, sunspot occurrence can be used to help predict space weather, the state of the ionosphere, andhence the conditions of short-wave radio propagation or satellite communications.
Very similar case, where act the reflections and propagation of electromagnetic waves,is the night shortwave radio propagation, where in this case the waves reflect many times between the ionosphere and the ground.
It was a small, spheroidal satellite designed to study trapped radiation of various energies, galactic cosmic rays,geomagnetism, radio propagation in the upper atmosphere, and the flux of micrometeorites.
Due to the distance involved in between the home station and the portable transceiver were higher than 2000 km frequency either considering the quality of the ionospheric radio propagation waves, the frequencies suitable for such coverage distances ranged from 3 to 8 MHz.
With the exponential growth of mobile internet, the understanding of how the tcp protocol behaves in a mobile communications environment,where radio propagation mechanisms are often complex, is necessary for the improvement of its performance.
Much beyond the importance of radio as a communication tool, lies the fact that dissemination can be done at a lower cost, demands less diesel,fuel used to produce the necessary energy for radio propagation, a reflection of the scarce energy production in the country.
The earth-low ionosphere system behaves as a waveguide for the propagation of radio waves of very low frequency vlf.
Although robust, the content transmission in this system, like in any radio frequency propagation, can suer from external attenuating factors, such as distortion by multipath propagation. .
The radio installation must permit contact at all times with at least one coastal or land-based station,taking inro account the normal conditions for propagation of radio waves.
Various WiMAX radio wave propagation models.
Develop and deliver 5G products by taking a new approach to design and testing, from radio frequency propagation and modulation, to simulating vastly different traffic types.
The supporting topics include radio wave propagation and antenna systems processing, wireless communication signals and access techniques, application adaptation and user device interaction and wireless communication systems and deployment.
Since the propagation of radio waves happens at constant speed(the speed of light c0) this distance is determined from the runtime of the high-frequency transmitted signal.
Using the difference in the radio signal propagation times of at least three or more of the 32 GPS satellites, a GPS receiver can accurately determine its position worldwide to within a few meters using trilateration.
Systems of propagation saw radio: services of broadcasting(commercial radio and digital analogical television/), private nets of data(digital radio); .