Results 11 to 20 of about 7,448,970 (353)

Phase distortion-free paramagnetic NMR spectra [PDF]

open access: yesJournal of Magnetic Resonance Open, 2021
The NMR spectra of paramagnetic substances can feature shifts over thousands of ppm. In high magnetic field instruments, this corresponds to extreme offsets, which make it challenging or impossible to achieve uniform excitation without phase distortion ...
Enrico Ravera
doaj   +2 more sources

Phase Distortion by Linear Signal Transforms [PDF]

open access: yesFrontiers in Applied Mathematics and Statistics, 2020
In this study, we are concerned with the effect of certain linear transformations of a signal f on its phase. We are, in particular, interested in phase distortions caused by band-limiting operations. The band-limiting operators serve as a motivation for
Frank Filbir, Frank Filbir, Lukas Liehr
doaj   +5 more sources

Roadmap of phase transitions in hafnia-based superlattice films [PDF]

open access: yesNature Communications
Hafnia-based ferroelectrics hold significant promise for next-generation non-volatile memory. However, their functional properties are critically limited by uncontrollable phase transitions due to the poorly understood atomistic mechanisms driving ...
Wan-Rong Geng   +5 more
doaj   +2 more sources

Function of Phase-Distortion for glottal model estimation [PDF]

open access: yes2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In voice analysis, the parameters estimation of a glottal model, an analytic description of the deterministic component of the glottal source, is a challenging question to assess voice quality in clinical use or to model voice production for speech transformation and syn- thesis using a priori constraints.
Degottex, Gilles   +2 more
openaire   +3 more sources

An Iterative Distortion Compensation Algorithm for Camera Calibration Based on Phase Target

open access: yesSensors, 2017
Camera distortion is a critical factor affecting the accuracy of camera calibration. A conventional calibration approach cannot satisfy the requirement of a measurement system demanding high calibration accuracy due to the inaccurate distortion ...
Feng Gao   +2 more
exaly   +2 more sources

Quantifying structural distortion manipulation for desired perovskite phase: Part II. Three-step workflow to reveal phase evolution logic

open access: yesJournal of Materiomics
Distortion manipulation emerges as an efficient approach to obtain desired perovskite phases for various applications. In part I of this study, we propose a paradigm to quantify the structural distortion manipulation, which enables us to obtain desired ...
Cheng Fang, Hong Wang, Siqi Shi
doaj   +3 more sources

Adaptive Phase Distortion Synthesis [PDF]

open access: yes, 2009
This article discusses Phase Distortion synthesis and its application to arbitrary input signals. The main elements that compose the technique are presented. Its similarities to Phase Modulation are discussed and the equivalence between the two techniques is explored. Two alternative methods of distorting the phase of an arbitrary signal are presented.
Lazzarini, Victor   +3 more
openaire   +2 more sources

Anti-Jamming GNSS Antenna Array Receiver with Reduced Phase Distortions Using a Robust Phase Compensation Technique

open access: yesRemote Sensing, 2023
Antenna arrays with adaptive filtering can protect the integrity and functionality of global navigation satellite system (GNSS) receivers against interference. However, a major problem with existing adaptive array processing algorithms is that they cause
Song Li   +4 more
doaj   +1 more source

Computer model of the transponder for the analysis of phase distortions of the signal

open access: yesКосмические аппараты и технологии, 2023
The article discusses issues related to the development of a computer model of an on-board relay complex with linear signal retransmission for the analysis of phase distortion of the signal.
A. V. Shagov   +2 more
doaj   +1 more source

Investigation of Phase Distortion on Perceived Speech Quality for Hearing-impaired Listeners [PDF]

open access: yesInterspeech, 2020
Phase serves as a critical component of speech that influences the quality and intelligibility. Current speech enhancement algorithms are beginning to address phase distortions, but the algorithms focus on normal-hearing (NH) listeners.
Z. Zhang, D. Williamson, Yi Shen
semanticscholar   +1 more source

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