Results 51 to 60 of about 132 (116)

Research on ADPLL for High-Precision Phase Measurement

Symmetry
The inter-satellite laser interferometer, which functions as a high-performance displacement sensor, will be used in forthcoming space-based gravitational wave detection missions. The readout of these interferometers is typically performed by phasemeters based on all-digital phase-locked loops (ADPLLs) implemented in FPGAs.
Weilai Yao, Chenying Sun, Xindong Liang, Jianjun Jia   +3 more
openaire   +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

Nonlinearity-Induced Spur Analysis in Fractional-N Synthesizers With ΔΣ Quantization Cancellation

IEEE Open Journal of the Solid-State Circuits Society
A fractional-N frequency synthesizer with low total jitter [e.g., <50fsrms, accounting for both phase noise (PN) and spurs] is essential for enabling the emerging 5G/6G and other high-speed wireless communication standards (e.g., WiFi-6/7).
Yizhe Hu, Weichen Tao, Robert Bogdan Staszewski   +2 more
doaj   +1 more source

Linearity Calibration Method for Stochastic Time-to-Digital Converters

IEEE Access
Stochastic Time-to-Digital Converters (STDCs) can theoretically achieve very fine time resolutions utilizing random time offsets caused by device mismatch rather than relying on delay elements.
Woongdae Na, Hayun Chung
doaj   +1 more source

Digitally Controlled Oscillator with High Timing Resolution and Low Complexity for Clock Generation. [PDF]

Sensors (Basel), 2021
Sheng D, Chen WY, Huang HT, Tai L.
europepmc   +1 more source

Chip Design of an All-Digital Frequency Synthesizer with Reference Spur Reduction Technique for Radar Sensing. [PDF]

Sensors (Basel), 2022
Lai WC.
europepmc   +1 more source

Resonant frequency tracking mode on eddy current pulsed thermography non-destructive testing. [PDF]

Philos Trans A Math Phys Eng Sci, 2020
Miao L, Gao B, Li H, Tian G.
europepmc   +1 more source

NaviSoC: High-Accuracy Low-Power GNSS SoC with an Integrated Application Processor. [PDF]

Sensors (Basel), 2020
Borejko T, Marcinek K, Siwiec K, Narczyk P, Borkowski A, Butryn I, Łuczyk A, Pietroń D, Plasota M, Reszewicz S, Wiechowski Ł, Pleskacz WA.   +11 more
europepmc   +1 more source

A Wide-Band Digital Lock-In Amplifier and Its Application in Microfluidic Impedance Measurement. [PDF]

Sensors (Basel), 2019
Huang K, Geng Y, Zhang X, Chen D, Cai Z, Wang M, Zhu Z, Wang Z.   +7 more
europepmc   +1 more source

Three new species of the genus Philopteroides Mey, 2004 (Phthiraptera, Ischnocera, Philopteridae) from New Zealand. [PDF]

Zookeys, 2013
Valim MP, Palma RL.
europepmc   +1 more source