Results 31 to 40 of about 8,847,760 (170)

A DTC-Based Snapshot ADPLL With Feedforward Fractional Spur Cancellation and Asynchronous Duty-Modulation Dithering DCO Achieving–71.6 dBc Fractional Spur in 65-nm CMOS Process

IEEE Access
This paper presents a DTC-based snapshot all-digital phase-locked loop (ADPLL) that achieves robust fractional spur suppression and low phase noise with compact circuit implementation.
Kihoon Kwon, Sangwon Kim, Minseo Park, Jinhyuk Ahn, Gahyeon Lee, Joonho Gil, Chulhyun Park, Yunseong Eo, Hyungkyu Choi, Chulho Kang, Eun-Seong Kim, Nam-Young Kim, Ramesh Harjani, Taehyoun Oh   +13 more
doaj   +1 more source

Jitter-calibrated second-order correlation measurement of low-repetition-rate pulsed excitation

, 2022
We report a new technique for the realization of second-order correlation ($g^2(\tau)$) measurement under low-repetition-rate pulsed excitation (1 kHz), with timing jitter calibrated to restore lateral $g^2(\tau)$ curves and determine $g^2(0)$.
Jue Gong (2880473), Wei Fang (116739), Limin Tong (1307688), Hao Wu (65943), Xin Guo (123593)   +4 more
core   +1 more source

Neurophysiological correlates of visually induced motion sickness severity: A scoping review of the impact of experimental settings on EEG spectral power

Journal of Intelligent Medicine, Volume 3, Issue 2, Page 152-168, June 2026.
This review synthesizes EEG findings from 28 VIMS studies across four inducing scenarios (abstract cues, virtual videos, vehicle driving, and game scenes) and two display types (HMD and monitor). While Delta/Theta enhancement consistently reflects sensory conflict, Alpha activity shows context dependency: predominantly increasing during passive viewing
Yanru Bai, Zhipeng Yang, Haoran Jiang, Jiedong Nan, Chunyang Hong, Guangjian Ni   +5 more
wiley   +1 more source

LOW-JITTER AND LOW-SPUR RING-OSCILLATOR-BASED PHASE-LOCKED LOOPS [PDF]

, 2020
Department of Electrical EngineeringIn recent years, ring-oscillator based clock generators have drawn a lot of attention due to the merits of high area efficiency, potentially wide tuning range, and multi-phase generation.
Lee, Yongsun
core  

Statistical analysis of first-order bang-bang phase-locked loops using sign-dependent random-walk theory [PDF]

, 2010
Bang-bang phase-locked loops (BBPLLs) are inherently nonlinear due to the hard nonlinearity introduced by the binary phase detector (BPD). This paper provides an exact statistical analysis of the steady-state timing jitter in a first order BBPLL when ...
Gleeson, James, Tertinek, Stefan, Orla Feely, Stefan Tertinek, James P. Gleeson, Feely, Orla   +5 more
core   +1 more source

A 10 mW 3.2 GHz All-Digital Fractional-N PLL Achieving −120-dBc/Hz In-Band Phase Noise Using a Continuous Time Bandpass Delta–Sigma Time-to-Digital Converter in 180-nm CMOS

IEEE Access
This paper presents a continuous-time bandpass delta-sigma time-to-digital converter (CT-BP $\Delta \Sigma $ TDC) for all-digital fractional- $N$ phase-locked loops (ADPLLs) operating under low reference frequency and wide loop bandwidth constraints ...
Thi Viet Ha Nguyen, Cong-Kha Pham
doaj   +1 more source

Semantic Temporal Single‐Photon LiDAR

Advanced Photonics Research, Volume 7, Issue 3, March 2026.
This study introduces a semantic Temporal single‐photon (TSP‐) LiDAR system that uses a self‐updating knowledge base for target recognition. The system adapts to unknown targets and performs effectively even under low signal‐to‐noise ratios and short acquisition times.
Fang Li, Tonglin Mu, Shuling Li, Junran Guo, Keyuan Li, Jianing Li, Ziyang Luo, Xiaodong Fan, Ye Chen, Yunfeng Liu, Hong Cai, Lip Ket Chin, Jinbei Zhang, Shihai Sun   +13 more
wiley   +1 more source

Monolithic Silicon Photonic Transceiver for 160 km Multi‐Channel Quantum Entanglement Distribution in Fiber Network

Laser &Photonics Reviews, Volume 20, Issue 1, 8 January 2026.
The paper demonstrates a chip scale (4.5 x 4.5 mm2) silicon integrated system that is capable of distributing entangled photons over 160 km single mode fibers without dispersion compensations and external optical filters. The results highlight the potential for massive production and large‐scale deployed quantum integrated circuits for a future ...
Yue Qin, Hongnan Xu, Hon Ki Tsang
wiley   +1 more source

Speech Differences between Multiple System Atrophy and Parkinson's Disease

Movement Disorders Clinical Practice, Volume 12, Issue 9, Page 1391-1396, September 2025.
Abstract Background Delineation of Parkinson's disease (PD) from multiple system atrophy (MSA) can be challenging in early disease stages. Speech characteristics have been studied as digital biomarkers in PD and ataxias. Currently, data on speech in MSA is limited.
Tom Hähnel, Anna Nemitz, Katja Schön, Luise Berger, Annemarie Vogel, Doreen Gruber, Nils Schnalke, Stefan Bräuer, Björn H. Falkenburger, Florin Gandor   +9 more
wiley   +1 more source

Signal selection and latency compensation in wide area controlled power system

Energy Science &Engineering, Volume 13, Issue 8, Page 3885-3902, August 2025.
Abstract This paper presents a new approach for selecting signals for the monitoring and control of power systems over a wide area. The approach solves the twin problems of locating Phasor Measurement Units for observability and placing dynamic controllers for controllability using distinct techniques.
Prakash Thyagarajan, Senthilkumar Vairakannu   +1 more
wiley   +1 more source