Results 11 to 20 of about 14,849,827 (330)
Physics-Based Noise Modeling for Extreme Low-Light Photography [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021 Enhancing the visibility in extreme low-light environments is a challenging task. Under nearly lightless condition, existing image denoising methods could easily break down due to significantly low SNR.
Kaixuan Wei +3 more
semanticscholar +1 more source
Low Noise Balanced Homodyne Detector for Quantum Noise Measurement
IEEE Access, 2022 The research of quantum noise in the interaction of laser and atoms plays a critical role in quantum optical experiments. The measurement of quantum noise is mainly based on the balanced homodyne detection method.
Shubo Lang +4 more
doaj +1 more source
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
doaj +1 more source
Noise-optimized ultrastable low-noise current amplifier [PDF]
Review of Scientific Instruments, 2019 We have developed a noise-optimized ultrastable low-noise current amplifier (ULCA) aimed at reducing the uncertainty at low currents. It involves a thin-film resistor network with 6.75 GΩ at the high-ohmic path which reduces the noise level to 1.6 fA/Hz. Noise investigations as well as short-term and long-term stability studies were carried out.
C. Krause +3 more
openaire +2 more sources
ESTIMATING THE SPECTRAL DENSITY OF FLICKER NOISE OF LOW-NOISE OSCILLATORS AT INFRA-LOW FREQUENCIES [PDF]
Radio Physics and Radio Astronomy, 2022 Subject and Purpose. Designers of the research radars intended for detecting manifestations of biological activity of living organisms may be interested in the noise characteristics shown by their oscillators at offsets about 10–2 Hz or even 10–3Hz from ...
V. M. Konovalov, K. O. Lukin
doaj +1 more source
Low-Noise pavement technologies and evaluation techniques: a literature review
International Journal of Pavement Engineering, 2020 Traffic noise is the perpetual form of environmental pollution adversely affecting human health in urban environments. This literature review, intended for pavement researchers and professionals, looks at the continuously evolving low-noise asphalt ...
P. Mikhailenko +7 more
semanticscholar +1 more source
Modelling the acoustic performance of newly laid low-noise pavements
Construction and Building Materials, 2020 Road traffic in urban contexts produces noise mainly by the interaction of tyres with pavement surface and, therefore, the use of low-noise surfaces represents the best solution since they aim to mitigate the source.
Luca Teti +6 more
semanticscholar +1 more source
Study on Noise Reduction with Paving Different Low Noise Pavement Materials
Applied Sciences, 2021 This paper evaluates the amount of noise reduction when using different pavement materials in two adjacent lanes, where the close-proximity (CPX) method is introduced to analyze the tire/road noise before and after pavement maintenance.
Minmin Yuan +3 more
doaj +1 more source
Low-Frequency Noise Modeling Using EMD with Experimental Results Validation [PDF]
هوش محاسباتی در مهندسی برق, 2023 Low-frequency noise modeling and estimation is a critical issue in the design of analog and digital circuits, especially for short-channel CMOS technologies.
Zeinab Shamaee +2 more
doaj +1 more source
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
doaj +1 more source