Results 21 to 30 of about 2,018 (250)
Turbo-coded star-QAM for cooperative wireless and optical-fiber communications [PDF]
, 2012 A low-complexity cooperative wireless and optical-fiber communication scheme is proposed for uplink communication in a Fractional Frequency Reuse (FFR) based multicell, multiuser system.
Liang, Dandan +7 more
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Small UAS Online Audio DOA Estimation and Real-Time Identification Using Machine Learning
Sensors, 2022 The wide range of unmanned aerial system (UAS) applications has led to a substantial increase in their numbers, giving rise to a whole new area of systems aiming at detecting and/or mitigating their potentially unauthorized activities.
Alexandros Kyritsis +2 more
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100 Gigabit Internet why and how : the technology behind it [PDF]
, 2010 The need to keep transmission capacity growing is a never ending process which is becoming more and more challenging to fulfill. Over the years we have witnessed data rates to grow from less than one bit per second all the way up to tens of Giga bits per
Glesk, I., I. Glesk
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Spatially Resolved Brillouin Spectral Hole Burning in PMF and SMF
IEEE Photonics Journal, 2018 We observe the spectral hole burning effect in a polarization maintain fiber (PMF) and a single-mode fiber (SMF) through the interaction between a continuous wave (CW) beam and a high power pulse with two frequency components located around the Stokes ...
Xiaoxuan Zhong +6 more
doaj +1 more source
Fiber-Coupled Ultra-High-Q Microresonators for Nonlinear and Quantum Optics [PDF]
, 2004 The ability to confine optical energy in small volumes for long periods of time is desirable for a number of applications, ranging from photonics and nonlinear optics, to fundamental studies in quantum electrodynamics.
Spillane, Sean Michael
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Active and Passive Electronic Components, 2002 In this paper a MMIC QPSK modulator is described. The bit rate of the baseband signal is 155 Mbits/sec, while the frequency of the carrier is fLO=10 GHz . The modulation is performed directly at the RF band and therefore an IF stage is not necessary. The
Petros S. Tsenes +3 more
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Active and Passive Electronic Components, 2002 In this paper two active MMIC mixers for RF front-end applications are described. A down-converter that converts an RF signal (fRF=10.45 GHz) into an IF signal (fIF=0.95 GHz) using an LO signal (fLO=9.5 GHz) and an up-converter that performs the ...
Ptros S. Tsenes +2 more
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IEEE Photonics Journal, 2018 In this paper, we report on the theoretical and numerical study of the transmission of circularly polarized vortex beams through a plasmonic coaxial nanoring.
Shuai Wang +9 more
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Light: Science & Applications, 2021 The control of polarization, an essential property of light, is of broad scientific and technological interest. Polarizers are indispensable optical elements for direct polarization generation.
Shuai Wang +8 more
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Effects of random phase and amplitude errors in optical fiber Bragg gratings [PDF]
, 2000 This paper studies the influence of random phase and amplitude fabrication errors on the performance of optical filters based on fiber Bragg gratings (FBGs).
Feced, R., Zervas, M.N.
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