Results 11 to 20 of about 1,498,261 (349)
Design and Experiment of Magnetic Antenna Vibration and Noise Reduction System
Applied Sciences, 2022 The magnetic antenna can receive extremely weak underwater magnetic signals, and induce the magnetic field intensity which can reach the femto-tesla (fT) level, making it widely used in underwater electromagnetic signal detection.
Sijie Jiang +5 more
doaj +1 more source
Characterizing Low-Frequency Qubit Noise
Physical Review Applied, 2023 Fluctuations of the qubit frequencies are one of the major problems to overcome on the way to scalable quantum computers. Of particular importance are fluctuations with the correlation time that exceeds the decoherence time due to decay and dephasing by fast processes. The statistics of the fluctuations can be characterized by measuring the correlators
Filip Wudarski +4 more
openaire +2 more sources
Transimpedance Amplifier for Noise Measurements in Low-Resistance IR Photodetectors
Applied Sciences, 2023 This paper presents the design and testing of an ultra-low-noise transimpedance amplifier (TIA) for low-frequency noise measurements on low-impedance (below 1 kΩ) devices, such as advanced IR photodetectors.
Krzysztof Achtenberg +4 more
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Low frequency noise in Si and Si/SiGe/Si PMOSFETs
Journal of Telecommunications and Information Technology, 2023 Measurements of 1/f noise in Si and Si0.64Ge0.36 PMOSFETs have been compared with theoretical models of carrier tunnelling into the oxide. Reduced noise is observed in the heterostructure device as compared to the Si control.
Stephen M. Thomas +7 more
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Four-point probe resistivity noise measurements of GaSb layers [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 This paper concerns measurements and calculations of low frequency noise for semiconductor layers with four-probe electrodes. The measurements setup for the voltage noise cross-correlation method is described.
L. Ciura +3 more
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Design of multi-channel low phase noise synchronous frequency source
Dianzi Jishu Yingyong, 2021 In order to meet the requirement of high stability frequency source when DRFM(Digital Radio Frequency Memory) system collects external input signals, a design method of multi-channel, low phase noise synchronous frequency source based on two-stage PLL is
Xu Wei, Pan Minghai, Zhang Yanjing
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Low-frequency active noise control of an underwater large-scale structure with distributed giant magnetostrictive actuators [PDF]
, 2017 A light and thin underwater large-plate active acoustic structure is developed that satisfies the particular requirements of high pressure resilience, low frequency and high efficiency encountered in underwater work environments.
Thomas, P. J. (Peter J.), Wang, Wenjie
core +1 more source
Low-Frequency Noise Phenomena in Switched MOSFETs [PDF]
, 2007 In small-area MOSFETs widely used in analog and RF circuit design, low-frequency (LF) noise behavior is increasingly dominated by single-electron effects.
Hoekstra, Eric +7 more
core +3 more sources
Low frequency cultural noise [PDF]
Geophysical Research Letters, 2009 Abnormal cultural seismic noise is observed in the frequency range of 0.01–0.05 Hz. Cultural noise generated by human activities is generally observed in frequencies above 1 Hz, and is greater in the daytime than at night. The low‐frequency noise presented in this paper exhibits a characteristic amplitude variation and can be easily identified from ...
Dong‐Hoon Sheen +3 more
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Low-noise Yb:CALGO optical frequency comb
Optics Express, 2021 We report on a compact optical frequency comb, operating in the wavelength range from 670 to 1500 nm, based on diode-pumped low-noise femtosecond Yb:CALGO amplified laser system. Both the carrier-envelope offset and repetition rate are phase-locked to reference synthesizers. A full characterization of the frequency comb, in terms of frequency stability,
Lisa M. Molteni +9 more
openaire +5 more sources