Results 21 to 30 of about 5,925,887 (294)
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
doaj +1 more source
International Journal of Reconfigurable Computing, 2014 This paper presents an efficient all digital carrier recovery loop (ADCRL) for quadrature phase shift keying (QPSK). The ADCRL combines classic closed-loop carrier recovery circuit, all digital Costas loop (ADCOL), with frequency feedward loop, maximum ...
Kaiyu Wang +4 more
doaj +1 more source
Photonics, 2022 In this paper, we propose an Extended Kalman Filtering with phase noise reconstruction (EKF-PC) scheme to enhance the carrier recovery capability for probabilistic shaping of coherent optical communication systems with various shaping factors.
Shiqun Zhang, Jiarun Yan, Zhiping Huang
doaj +1 more source
All-Optical Carrier Synchronization Using A Phase-Sensitive Oscillator
, 2007 An all-optical carrier synchronization (carrier-phase and polarization recovery) scheme from binary phase-shift keying signals is proposed and demonstrated for the first time.
Li, Xiaoxu +3 more
core +2 more sources
Role of carrier reservoirs on the slow phase recovery of quantum dot semiconductor optical amplifiers [PDF]
, 2022 This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett.
Meuer, C. +3 more
core +1 more source
IEEE Photonics Journal, 2013 Differentially encoding and frequency offset compensating for a 16-quadrature amplitude modulation (16-QAM) vector signal in 60-GHz millimeter-wave radio-over-fiber (RoF) systems are experimentally investigated.
A.-L. Yi +7 more
doaj +1 more source
Transport behavior of thorium(IV) in a continuous-flow liquid membrane containing Di-(2-ethylhexyl) phosphonic acid [PDF]
مجله علوم و فنون هستهای, 2020 As a step towards the development of liquid membrane technology for the recovery of thorium from dilute solutions, the article investigates transport behavior of Th(IV) from a feed (solution) phase containing 0.0001M hydrochloric acid (HCl) into a ...
S.A. Milani, F. Zahakifar
doaj +1 more source
Nonlinear analysis of GMSK carrier phase recovery loop [PDF]
2016 International Symposium on Signal, Image, Video and Communications (ISIVC), 2016 Deep space communication systems operate in the presence of high atmospheric attenuation and the capacity of the on-board energy generator is limited which produces a very low signal to noise ratio (SNR) at the reception. In order to satisfy the required transmission quality of deep space mission in terms of power and spectral efficiency, a coherent ...
Jhaidri, Mohamed Amine +2 more
openaire +2 more sources
Sistem Modulator dan Demodulator BPSK dengan Costas Loop
Techne, 2015 Pada tulisan ini akan dibahas suatu sistem transmisi data berbasis BPSK (Binary Phase Shift Keying) menggunakan Costas Loop pada demodulatornya. Pada prinsipnya Costas Loop adalah bentuk khusus dari PLL yang difungsikan untuk melakukan demodulasi sinyal ...
Budihardja Murtianta
doaj +1 more source
Techniques for automatic on chip closed loop transfer function monitoring for embedded charge pump phase locked loops. [PDF]
, 2003 Charge Pump Phase locked loops are used in a variety of applications, including on chip clock synthesis, symbol timing recovery for serial data streams, and generation of frequency agile high frequency carrier signals.
Burbidge, Martin J. +2 more
core +4 more sources