Results 31 to 40 of about 8,846,368 (309)

Effects of NMR spectral resolution on protein structure calculation [PDF]

open access: yes, 2013
Adequate digital resolution and signal sensitivity are two critical factors for protein structure determinations by solution NMR spectroscopy. The prime objective for obtaining high digital resolution is to resolve peak overlap, especially in NOESY ...
Güntert, Peter   +3 more
core   +3 more sources

Autonomous Control Method of Rotor UAVs for Power Inspection With Renewable Energy Based on Swarm Intelligence

open access: yesFrontiers in Energy Research, 2021
With the rapid development of renewable energy, the scale of China’s power grid with renewable energy has become much bigger than ever; as a result, we are facing severe challenges in the inspection and maintenance work of power grids that use renewable ...
Yao Yao   +11 more
doaj   +1 more source

Imaginary Finger Movements Decoding Using Empirical Mode Decomposition and a Stacked BiLSTM Architecture

open access: yesMathematics, 2021
Motor Imagery Electroencephalogram (MI-EEG) signals are widely used in Brain-Computer Interfaces (BCI). MI-EEG signals of large limbs movements have been explored in recent researches because they deliver relevant classification rates for BCI systems ...
Tat’y Mwata-Velu   +4 more
doaj   +1 more source

Stable signal recovery from incomplete and inaccurate measurements [PDF]

open access: yes, 2005
Suppose we wish to recover a vector x0 ∈ ℝ𝓂 (e.g., a digital signal or image) from incomplete and contaminated observations y = A x0 + e; A is an 𝓃 × 𝓂 matrix with far fewer rows than columns (𝓃 ≪ 𝓂) and e is an error term.
E. Candès, J. Romberg, T. Tao
semanticscholar   +1 more source

Corner reflector tag with RCS frequency coding by dielectric resonators

open access: yesIET Microwaves, Antennas & Propagation, 2021
For a novel indoor‐localization system, chipless tags with high retro‐directive radar cross‐section (RCS) under wide‐angle incidence are required as fixed landmarks.
Ali Alhaj Abbas   +4 more
doaj   +1 more source

2–D Lossless FIR Filter Design Using Synthesis of the Paraunitary Transfer Function Matrix

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
A synthesis method for designing two-dimensional lossless finite impulse response (FIR) filters for various digital signal processing tasks is proposed.
Wawryn Krzysztof, Poczekajło Paweł
doaj   +1 more source

Harmonic FMCW Radar System: Passive Tag Detection and Precise Ranging Estimation

open access: yesSensors
This paper details the design and implementation of a harmonic frequency-modulated continuous-wave (FMCW) radar system, specialized in detecting harmonic tags and achieving precise range estimation.
Ahmed El-Awamry   +3 more
doaj   +1 more source

Experimental Investigation of Terahertz Scattering: A Study of Non-Gaussianity and Lateral Roughness Influence

open access: yesIEEE Access, 2020
The scattering phenomenon caused by rough surfaces has a dominant role in shaping the reflected field at terahertz (THz) frequencies, both in specular and non-specular directions. Most surfaces in nature are randomly rough, and the surface height obeys a
Mai Alissa   +4 more
doaj   +1 more source

The role of lossless systems in modern digital signal processing: a tutorial [PDF]

open access: yes, 1989
A self-contained discussion of discrete-time lossless systems and their properties and relevance in digital signal processing is presented. The basic concept of losslessness is introduced, and several algebraic properties of lossless systems are studied.
Doğanata, Zinnur, Vaidyanathan, P. P.
core   +1 more source

Multi-Stroke handwriting character recognition based on sEMG using convolutional-recurrent neural networks

open access: yesMathematical Biosciences and Engineering, 2020
Despite the increasing use of technology, handwriting has remained to date as an efficient means of communication. Certainly, handwriting is a critical motor skill for childrens cognitive development and academic success.
Jose Guadalupe Beltran-Hernandez   +4 more
doaj   +1 more source

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