Results 11 to 20 of about 4,746 (161)
An All-Digital Optical Phase-Locked Loop Suitable for Satellite Downlinks
Photonics, 2023 The optical signal propagation used in satellite uplinks and downlinks is influenced by absorption, scattering, and changes in the atmospheric refractive index or turbulence, causing optical signal attenuation.
Jognes Panasiewicz +4 more
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Energies, 2017 The control system of a doubly-fed adjustable-speed pumped-storage hydropower plant needs phase-locked loops (PLLs) to obtain the phase angle of grid voltage.
Wei Luo, Jianguo Jiang, He Liu
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Understanding of the Coherent Demodulation with Phase-Locked Loop
MATEC Web of Conferences, 2018 The phase-locked loop (PLL) technology is a very important technology in the communication field. With the development of electronic technology toward digitalization, the phase-locked processing of signal needs to be realized in digital way.
Zhai Bingcong
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A Resolution Control Loop for TDC-Based Phase Detectors in ADPLLs
IEEE Access, 2023 This paper proposes a resolution control loop that runs in background to control the time resolution of a mid-rise Time to Digital Converter (TDC) used as a phase detector in All-Digital Phase Locked Loops (ADPLLs).
Abdelrahman Habib +2 more
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An all-digital phase-locked loop based on variable phase accumulator
Dianzi Jishu Yingyong, 2019 This paper presents a novel all-digital phase-locked loop with variable phase accumulator circuit structure. The design of the system is completed by using EDA technology, and the system simulation experiment is carried out by using ModelSim software ...
Yang Mengwei, Tian Fan, Shan Changhong
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A smart DPLL for robust carrier tracking systems using uncertain rule-based IT2 fuzzy controllers
Engineering Science and Technology, an International Journal, 2020 The carrier tracking synchronizes the receiver and transmitter oscillators with each other’s and is adopted as a closed-loop structure known as the phase-locked loop (PLL).
Mohieddin Moradi, Mehdi Ehsanian
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Applied Sciences, 2018 This paper studies a second order generalized integrator-frequency locked loop (SOGI-FLL) control scheme applicable for 3-phase alternating current/direct current (AC/DC) pulse width modulation (PWM) converters used in DC distribution systems.
Jin-Wook Kang +5 more
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Improvement of methods and means of control of deviations from straightness by using acousto-optic heterodyne laser measuring systems [PDF]
Омский научный вестник, 2019 The article deals with the construction of high-precision acoustooptic (AO) heterodyne laser measurement systems for monitoring deviations from straightness when working in continuous mode with phase-digital Δφ(Δl y )–ΔNout and frequency-digital Δf ...
E. V. Leun
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IEEE Access, 2020 This paper presents a design of 6.8 mW all digital delay locked loop (ADDLL) with digitally controlled dither cancellation (DCDC) for time to digital converter (TDC) in ranging sensors.
Muhammad Riaz Ur Rehman +6 more
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Active and Passive Electronic Components, 2018 The noise characteristics of multichannel systems of forming signals based on hybrid frequency synthesizers with automatic compensation of phase distortions of direct digital synthesizers, which are used in the composition of georadars with synthesized ...
Oleg R. Kuzichkin +4 more
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