نتایج جستجو برای: radio frequency rf
تعداد نتایج: 566359 فیلتر نتایج به سال:
It is shown by considering the general properties of solution of the kinetic equation that plasma rotation in Radio-Frequency (RF) wave heated tokamak plasmas can be modeled by the RF-modified plasma viscous force. This approach is qualitatively different from a model that uses a radial current to model the RF effects on plasma rotation. 52.55.Fi Typeset using REVTEX
Radio traffic monitoring is a crucial task whenever different and incompatible radio frequency (RF) communication standards simultaneously exist within a given environment. In this paper, we present a software-based tool for RF traffic monitoring and diagnosis within the European 868 MHz Short Range Device (SRD) band that is composed of commercially available low-cost receiver hardware and an a...
RFID (Radio Frequency IDentification) system has been widely used in our life, such as transport systems, passports, automotive, animal tracking, human implants, library, and so on. However, the RFID authentication protocols between RF (Radio Frequency) tags and the RF readers have been bring about various privacy problems that anonymity of the tags, tracking, eavesdropping, and so on. Many res...
[1] The theory of radio frequency (RF) emissions by terrestrial gamma-ray flashes (TGFs) is developed. These radio emissions, which are separate from the emission caused by lightning, are produced by the electric currents generated by runaway electrons and resulting low-energy electrons and ions. It is found from theory that the radio frequency pulses produced by TGFs are large enough to measur...
In this paper, the performance of radio-over-fiber (RoF) links employing intensity modulation has been investigated in terms of signal to noise ratio (SNR). An analytical model including dispersion, laser and radio frequency (RF) oscillator phase noise is constructed to estimate the SNR performance for 64quadrature amplitude modulation (QAM) based RoF systems. It has been observed that the RF o...
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