Results 11 to 20 of about 81,322 (215)
Photonics, 2016 Using coherent optical detection and digital signal processing, laser phase noise and equalization enhanced phase noise can be effectively mitigated using the feed-forward and feed-back carrier phase recovery approaches.
Tianhua Xu +6 more
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Highly Selective and Efficient Transport of Au(III), Pt(IV), and Pd(II) from Hydrochloric Acid Across Polymer Inclusion Membranes Containing Ionic Liquid as Ion Carrier [PDF]
MembranesIonic liquid (IL) N-methyl-N′-1-(4-t-butylphenylphosphinyl)butylimidazolium bis(trifluoromethylsulphonyl) imide was used for the first time as an ion carrier in membrane systems to selectively transport Au(III), Pt(IV), and Pd(II) ions.
Iwona Zawierucha +3 more
doaj +2 more sources
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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Removal of Dye from Synthetic Wastewater by Liquid Membrane
Journal of Engineering, 2022 New technologies have risen into popularity causing the Liquid membrane techniques to evolve over other separation techniques due to its high selectivity and recovery, increased fluxes, and reduced investment and operating cost.
Saba’ A. Hameed, Hussein. M. Flayeh
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IEEE Photonics Journal, 2019 We propose and experimentally demonstrate an approach to carrier frequency and phase recovery of a microwave photonic signal based on carrier period measurement (CPM). In the approach, a coarse carrier frequency offset (CFO) estimation is first performed,
Qingming Zhu +4 more
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Carrier Phase Recovery for Array Navigation Receiver: A Fast Phase Retrieval Approach
IEEE Access, 2019 A fast carrier phase recovery scheme is developed for satellite navigation receiver using an antenna array based on the phase retrieval theory, in which the antenna array provides sufficient measurement information for the phase recovery algorithm. First,
Qiang Li +4 more
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Carrier phase recovery of LDPC-coded systems based on the likelihood difference algorithm
EURASIP Journal on Advances in Signal Processing, 2023 The problem of blind phase offset recovery of low density parity-check (LDPC)-coded systems is considered in this paper. We propose a new algorithm of phase offset estimation that involves the computation and maximization of a likelihood difference (LD ...
Rodrigue Imad, Sebastien Houcke
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Low-Complexity Blind Carrier Phase Recovery for C-mQAM Coherent Systems
IEEE Photonics Journal, 2019 A novel carrier phase recovery algorithm is proposed for coherent optical systems with circular multilevel quadrature amplitude modulation (C-mQAM). After amplitude segmentation and phase rotation, the particular distribution of the constellation points ...
Ping Zhang +6 more
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Research on Improved Costas Loop for High-order QAM [PDF]
Jisuanji gongcheng, 2017 In order to improve convergence speed and tracking stability for high-order Quadrature Amplitude Modulation(QAM) demodulation carrier recovery,a new kind of Costas loop is designed based on software radio thought and the basic principle of traditional ...
ZHOU Shengyuan,PAN Huilan
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Micromachines, 2023 A photonics-assisted binary/quaternary phase-coded microwave signal generator with fundamental/doubling reconfigurable carrier frequency applicable to digital I/O interfaces is proposed and has been verified by experiments.
Jing Yin +4 more
doaj +1 more source