Results 11 to 20 of about 145,363 (99)
Effect and mechanisms of sodium carbonate on the auto-carrier flotation of scheelite
工程科学学报, 2019 Because of the low recovery of -10 μm fine scheelite particles in scheelite flotation, some amount of fine scheelite is lost in the tailing, resulting in the wasting of scheelite resources.
WANG Ji-zhen +2 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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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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Reversible Data Hiding in Encrypted Images Based on Two-Round Image Interpolation
Mathematics, 2023 The data embedding of vacating room after encryption reversible data hiding in encrypted images (VRAE RDHEI) is performed on an encrypted image without redundancy and spatial correlation.
Qing Zhang, Kaimeng Chen
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Data-Aided Carrier Recovery with QPSK Modulation
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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The self-carrier effect of hematite in the flotation
工程科学学报, 2019 Finely disseminated iron ores are a type of refractory iron ores that exist in many regions in China, where fine grind is essential to liberate iron minerals from gangue.
Dong LI +3 more
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Simulasi Sinkronisasi Carrier pada Modulasi Digital menggunakan Matlab
Jurnal Elkomika, 2014 ABSTRAKDalam sistem komunikasi digital, salah satu manfaat teknik pengkodean adalah sebagai efisiensi bandwidth. Pada kanal komunikasi, adanya noise akan mengganggu dan menurunkan kinerja sistem komunikasi digital.
DWI ARYANTA +2 more
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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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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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Challenges and Innovations in CMOS-Based 300-GHz Transceivers for High-Speed Wireless Communication
IEEE Open Journal of the Solid-State Circuits SocietyThe IEEE 802.15.3d standard, issued in October 2017, defined a high-data-rate wireless physical layer using the 252–325–GHz frequency band, also known as the 300-GHz band, enabling data rates up to 100 Gb/s.
Minoru Fujishima
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