Results 51 to 60 of about 469,971 (293)
Time-Range Focus-Before-Detect Method in Clutter Background
Leida xuebao, 2022 The traditional coherent radar signal processing generally adopts the cascaded processing method of pulse compression and Radon-Fourier Transform (RFT) for a target moving across the range cell.
Jian GUAN +4 more
doaj +1 more source
Resonance lineshapes in two-dimensional Fourier transform spectroscopy
Optics Express, 2010 We derive an analytical form for resonance lineshapes in two-dimensional (2D) Fourier transform spectroscopy. Our starting point is the solution of the optical Bloch equations for a two-level system in the 2D time domain. Application of the projection-slice theorem of 2D Fourier transforms reveals the form of diagonal and cross-diagonal slices in the ...
Mark E, Siemens +4 more
openaire +2 more sources
All-optical retrieval of the global phase for two-dimensional Fourier-transform spectroscopy
, 2011 A combination of spatial interference patterns and spectral interferometry are used to find the global phase for non-collinear two-dimensional Fourier-transform (2DFT) spectra.
Alan D. Bristow +28 more
core +1 more source
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
QFM Signals Parameters Estimation Based on Double Scale Two Dimensional Frequency Distribution
IEEE Access, 2019 This paper proposes a novel estimation method, named double scale two dimensional frequency distribution (DSTFD), to estimate the parameters of quadratic frequency modulated (QFM) signals.
Fulong Jing +4 more
doaj +1 more source
Applied Sciences, 2021 In this paper, a method for automatically separating the mixed circular fringe patterns based on the fractional Fourier transform (FrFT) analysis is proposed.
Hsuan-Ting Chang +5 more
doaj +1 more source
, 2013 We present a quantum SWAP gate valid for quantum systems of an arbitrary dimension. The gate generalizes the CNOT implementation of the SWAP gate for qubits and keeps its most important properties, like symmetry and simplicity.
Chamorro-Posada, Pedro +1 more
core +1 more source
Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding
Advanced Engineering Materials, EarlyView.This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou +6 more
wiley +1 more source
Exploring two-dimensional electron gases with two-dimensional Fourier transform spectroscopy
The Journal of Chemical Physics, 2014 The dephasing of the Fermi edge singularity excitations in two modulation doped single quantum wells of 12 nm and 18 nm thickness and in-well carrier concentration of ∼4 × 1011 cm−2 was carefully measured using spectrally resolved four-wave mixing (FWM) and two-dimensional Fourier transform (2DFT) spectroscopy. Although the absorption at the Fermi edge
Paul, J. +5 more
openaire +4 more sources
Arbitrary shape surface Fresnel diffraction
, 2012 Fresnel diffraction calculation on an arbitrary shape surface is proposed. This method is capable of calculating Fresnel diffraction from a source surface with an arbitrary shape to a planar destination surface.
Ahrenberg +15 more
core +1 more source