Zobrazeno 1 - 10 of 1 201 pro vyhledávání: '"Quadrature (astronomy)"'
1
Prospects of a tether system deployed at the L1 libration point
Autor: Vladimir S. Aslanov
Publikováno v: Nonlinear Dynamics. 106:2021-2033
The paper focuses on the study and development of a mission to use the L1 libration point for deployment of a tether system in the direction of a moon in the planar elliptic restricted three-body problem on the example of the Mars-Phobos system. An o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c1888a47d5b7d209e63cf1a16fdde44
https://doi.org/10.1007/s11071-021-06884-4
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2
A Quadrature Class-G Complex-Domain Doherty Digital Power Amplifier
Autor: Sang-Min Yoo, Si-Wook Yoo, Shih-Chang Hung
Publikováno v: IEEE Journal of Solid-State Circuits. 56:2029-2039
This article presents an efficient quadrature digital power amplifier (DPA) based on a complex-domain Doherty (CDD) architecture. The proposed CDD architecture allows a PA to achieve high efficiency through Doherty operation in a complex domain using
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26ad9a1bc4c8733e127840d5c7f404c8
https://doi.org/10.1109/jssc.2020.3040973
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3
Privacy Int'l v. Secretary of State for Foreign & Commonwealth Affairs and La Quadrature du Net v. Premier ministre (C.J.E.U.)
Autor: Jack Maxwell, Joe Tomlinson
Publikováno v: International Legal Materials. 60:464-520
In October 2020, the Court of Justice of the European Union (CJEU), sitting as a Grand Chamber, handed down its preliminary rulings in Privacy International v. Secretary of State for Foreign and Commonwealth Affairs (Privacy International) and in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bba512a717e2763070f28a85ded2c65e
https://doi.org/10.1017/ilm.2021.12
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4
A Quadrature Sub-Sampling Phase Detector for Fast-Relocked Sub-Sampling PLL Under External Interference
Autor: Xinlin Geng, Xie Qian, Zheng Wang
Publikováno v: IEEE Transactions on Circuits and Systems II: Express Briefs. 68:87-91
Conventional sub-sampling PLLs suffer from unstable problems under external interference due to potential long relock time in some cases. To solve this issue, a novel quadrature sub-sampling phase detector (QSSPD) is proposed in this brief to elimina
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e5391b29b56082283165fb9794ec5de
https://doi.org/10.1109/tcsii.2020.3010231
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5
A Physical Transmitter Implementation of a Quadrature Space Shift Keying MIMO System
Autor: Raed Mesleh, Omar Hiari, Abdullah Al-Khatib
Publikováno v: IEEE Transactions on Circuits and Systems II: Express Briefs. 68:251-255
Quadrature space shift keying (QSSK) is a variant of space modulation techniques. QSSK strictly transmits spatial symbols through the use of two orthogonal unmodulated carriers. The hardware implementation model of QSSK affirms that QSSK can be reali
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::526a6ff87c4b887308f66002ef88178c
https://doi.org/10.1109/tcsii.2020.3006434
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6
Optical Improved Quadrature Spatial Modulation for Cooperative Underwater Wireless Communication under Weak Oceanic Turbulence Conditions
Autor: Anirban Bhowal, Rakhesh Singh Kshetrimayum
Publikováno v: IET Optoelectronics. 14:434-439
Amplify-and-forward cooperative underwater optical wireless communication employing optical improved quadrature spatial modulation (OIQSM) is proposed in this study. It uses multiple signal constellations, thereby improving the system performance. It
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f12459f7620921d445e9e64ade8790a5
https://doi.org/10.1049/iet-opt.2020.0012
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7
Optimization and Testing of a 1H/3He Double-Nuclear Quadrature Transmit Coil, Applying the Analytical Method at 0.06T
Autor: Meichu Huang, Wang Yi, Yuxia Hu, Rui Zhang, Yan Dou, Xun Zhang, Hu Liangliang, Jinzhang Xu
Publikováno v: Journal of Medical Imaging and Health Informatics. 10:2699-2706
Application of polarized noble gas technology in lung functional magnetic resonance imaging (fMRI) has garnered attention for its unique advantages, such as high resolution and a lack of radiation exposure. This paper presents a 4-channel radio frequ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13ff6d5207bff04d51239fc466fd05eb
https://doi.org/10.1166/jmihi.2020.3203
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9
Single VDGA-Based Dual-Mode Multifunction Biquadratic Filter and Quadrature Sinusoidal Oscillator
Autor: W. Tangsrirat, T. Pukkalanun, O. Channumsin
Publikováno v: Informacije MIDEM, Vol 50, Iss 2, Pp 125-136 (2020)
This article relates to the realization of voltage-mode and/or current-mode multifunction biquadratic filter and quadrature oscillator circuits each using one voltage differencing gain amplifier (VDGA), two resistors and two grounded capacitors. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1f656180c09ddb6e7152f2c592bcc08
https://doi.org/10.33180/infmidem2020.205
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10
Design and analysis of millimeter-wave quadrature coupler and power dividers
Autor: Kai-Siang Lan, Yo-Sheng Lin
Publikováno v: Analog Integrated Circuits and Signal Processing. 105:319-334
We present the design and analysis of a Ka-band (26.5–40 GHz) CMOS quadrature coupler (QC) and four Ka-band CMOS power dividers. To reduce the chip area of these devices, spiral coupled-line- based structure (or spiral QC-based structure) is adopte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e19b134812b6fbbdaab40e935efd8940
https://doi.org/10.1007/s10470-020-01693-y
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