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Phase Distortion in Electroacoustic Systems [PDF]
The Journal of the Acoustical Society of America, 1941 In the course of an investigation of phase distortion in electroacoustical systems the phase shift vs. frequency characteristic of a standard miniature condenser transmitter was measured by application of the principle of reciprocity. Measurements were made in a closed cavity and in free space.
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Megahertz-rate shock-wave distortion cancellation via phase conjugate digital in-line holography
Nature Communications, 2020 Holography is a powerful tool for three-dimensional imaging. However, in explosive, supersonic, hypersonic, cavitating, or ionizing environments, shock-waves and density gradients impart phase distortions that obscure objects in the field-of-view ...
Y. Mazumdar +4 more
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IEEE Photonics Journal, 2023 We propose and demonstrate a high-precision phase noise analysis method based on a photonic-assisted microwave phase shifter (MPS) without nonlinear phase distortions (NPD).
Jian Wang +8 more
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Ultrastrong Medium‐Entropy Single‐Phase Alloys Designed via Severe Lattice Distortion
Advances in Materials, 2018 Severe lattice distortion is a core effect in the design of multiprincipal element alloys with the aim to enhance yield strength, a key indicator in structural engineering. Yet, the yield strength values of medium‐ and high‐entropy alloys investigated so
S. Sohn +9 more
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Remote Sensing, 2022 Calibration using corner reflectors is an effective way to estimate the distortion parameters of hybrid compact polarimetric (HCP) synthetic aperture radar (SAR) systems.
Wentao Hou +6 more
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NeuroImage, 2022 Accurate spatial alignment of MRI data acquired across multiple contrasts in the same subject is often crucial for data analysis and interpretation, but can be challenging in the presence of geometric distortions that differ between acquisitions.
Anna I. Blazejewska +4 more
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An Efficient Phase-Locked Loop for Distorted Three-Phase Systems [PDF]
Energies, 2017 This paper proposed an efficient phase-locked loop (PLL) that features zero steady-state error of phase and frequency under voltage sag, phase jump, harmonics, DC offsets and step-and ramp-changed frequency. The PLL includes the sliding Goertzel discrete Fourier transform (SGDFT) filter-based fundamental positive sequence component separator (FPSCS ...
Yijia Cao +4 more
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Nuclear Fusion, 2023 We have investigated the waveform distortion of energetic particle driven off-axis fishbone mode (OFM) in tokamak plasmas with kinetic magnetohydrodynamic (MHD) hybrid simulations. We extended our previous simulations (Li et al 2022 Nucl.
Hanzheng Li +4 more
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IEEE Photonics Journal, 2014 We propose an optical sideband processing approach for phase-modulation direct-detection microwave photonics link in this paper. With optical sideband processing, phase modulation signal is converted to intensity modulation signal for direct detection ...
Jian Li +3 more
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Kurdistan Journal of Applied Research, 2021 Recent power distribution networks comprise abundant sensitive loads, which extremely impact the power quality of source in electrical power networks. Voltage dip, voltage rise, imbalanced voltage, line notching and distortion of harmonics are problems ...
Haider Muhamad Husen
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