Results 1 to 10 of about 435,575 (301)
Efficient Parallel Carrier Recovery for Ultrahigh Speed Coherent QAM Receivers with Application to Optical Channels [PDF]
Journal of Electrical and Computer Engineering, 2013 This work presents a new efficient parallel carrier recovery architecture suitable for ultrahigh speed intradyne coherent optical receivers (e.g., ≥100 Gb/s) with quadrature amplitude modulation (QAM).
Pablo Gianni +3 more
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Data-Aided Carrier Recovery with QPSK Modulation [PDF]
Buletinul Ştiinţific al Academiei Trupelor de Uscat, 2019 Digital communication has proven to be the most efficient method of data transmission especially where long distances are involved. This led to the invention of more sophisticated methods of communication ranging from mobile handset communication to more
Al-Rawi Muhanned
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Temperature-Dependent Reverse-Recovery Behavior Analysis and Circuit-Level Mitigation of Superjunction MOSFETs [PDF]
MicromachinesThis study explores the temperature dependence of reverse-recovery behavior in superjunction metal-oxide-semiconductor field-effect-transistors (MOSFETs) using experiments and Technology Computer-Aided Design (TCAD) simulations. Results show that at 145 °
Wenrong Cui +6 more
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Design and Simulation of Digital PLL Synchronizer for BPSK and QPSK Based on Software Defined Radio [PDF]
Engineering and Technology Journal, 2009 This paper presents a design and simulation of digital PLL synchronizer, usingCostas loop based on SDR for high frequency communication systems. Designparameters are selected for each unit of the proposed systems in order toaccommodate SDR requirements ...
H. T. Ziboon, A. A. Thabit
doaj +1 more source
Photonics, 2023 In this paper, a low-complexity joint compensation scheme of carrier recovery (JCSCR) for coherent free-space optical (CFSO) communication is proposed.
Xinyu Tang +5 more
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Carrier dynamic and carrier Temperature in Quantum Well
مجلة علوم ذي قار, 2022 Carrier temperature in quantum well (QW) semiconductor optical amplifier (SOA) has been studied, depending density matrix theory (DMT) and carrier dynamic in quantum well. The effect of volume carrier density, doping on effect, pulse shape, nonradiative
Hiba J. Musa, Ahmed H. Flayyih
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Optimal Filtering in Pilot‐Aided Carrier Recovery [PDF]
Journal of Electrical and Computer Engineering, 2009 The paper deals with carrier recovery based on pilot symbols in single‐carrier systems. Wiener′s method is used to determine the optimal unconstrained filter in estimation of phase noise assuming that a sequence of equally spaced pilot symbols is available.
SPALVIERI, ARNALDO, BARLETTA, LUCA
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M-PSK Demodulator With Joint Carrier and Timing Recovery [PDF]
IEEE Transactions on Circuits and Systems II: Express Briefs, 2021 In this brief, we propose a new digital receiver for Phase-Shift Keying (PSK) modulation based on the integration of the conventional digital Costas Loop circuit with a new timing recovery method. The timing recovery is applied to the PSK demodulator using an Iterative Learning Control (ILC) law and it is based on the minimization of the intersymbol ...
Daniele Giardino +6 more
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Frequency Comb-Based WDM Transmission Systems Enabling Joint Signal Processing
Applied Sciences, 2018 We review the use of optical frequency combs in wavelength-division multiplexed (WDM) fiber optic communication systems. In particular, we focus on the unique possibilities that are opened up by the stability of the comb-line spacing and the phase ...
Lars Lundberg +6 more
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Homodyne OFDM using Simple Optical Carrier Recovery [PDF]
Optical Fiber Communication Conference, 2014 We demonstrate a novel optical injection locking approach to carrier recovery in RF-pilot aided OFDM. Any need for optical pre-filtering is eliminated and only very narrow guard bands are required.
Liu, Z. +3 more
openaire +2 more sources