Yapeng Fu
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View article: Ultrafast ultrasound coded vector Doppler imaging of blood flow velocity and resistivity
Ultrafast ultrasound coded vector Doppler imaging of blood flow velocity and resistivity Open
Dynamic and precise measurement of cerebral blood flow velocity plays a critical role in neuroscience and the diagnosis of cerebrovascular diseases. Traditional color Doppler ultrasound can only measure the velocity component along the ult…
View article: Federal Algorithm Design and Numerical Experiments of Ensemble Kalman Filter Data Assimilation Analysis Process
Federal Algorithm Design and Numerical Experiments of Ensemble Kalman Filter Data Assimilation Analysis Process Open
Based on the federated Kalman filter proposed by Carlson with linear systems, we propose a federated computing scheme for the ensemble Kalman filter (EnKF) assimilation analysis process for nonlinear systems, and give an optimal informatio…
View article: A Multi-Objective Geoacoustic Inversion of Modal-Dispersion and Waveform Envelope Data Based on Wasserstein Metric
A Multi-Objective Geoacoustic Inversion of Modal-Dispersion and Waveform Envelope Data Based on Wasserstein Metric Open
The inversion of acoustic field data to estimate geoacoustic parameters has been a prominent research focus in the field of underwater acoustics for several decades. Modal-dispersion curves have been used to inverse seabed sound speed and …
View article: Three-dimensional ultrafast ultrasound imaging of blood flow using row-column addressing array: A simulation study
Three-dimensional ultrafast ultrasound imaging of blood flow using row-column addressing array: A simulation study Open
Three-dimensional (3D) ultrafast imaging is important for ultrasound technology development. The traditional 3D imaging method based on fully sampled two-dimensional (2D) matrix often requires a large number of electronic channels with hig…
View article: Numerical simulation method of nonlinear contrast-enhanced ultrasound imaging
Numerical simulation method of nonlinear contrast-enhanced ultrasound imaging Open
Contrast-enhanced ultrasound imaging (CEUS) based on the acoustic nonlinearity of ultrasonic microbubble has received great attention in recent years. Compared with conventional linear ultrasound imaging, nonlinear CEUS can further improve…
View article: Waveform Reconstruction of Lightning Current Based on Output‐Error Model and Finite‐Difference Time‐Domain Method
Waveform Reconstruction of Lightning Current Based on Output‐Error Model and Finite‐Difference Time‐Domain Method Open
A simple method combining Output‐Error (OE) model and Finite‐Difference Time‐Domain (FDTD) method is proposed to reconstruct lightning current in this paper. First, the FDTD method is adopted to calculate electromagnetic fields of any desi…
View article: An Inner/Outer Loop Ensemble-Variational Data Assimilation Method
An Inner/Outer Loop Ensemble-Variational Data Assimilation Method Open
Data assimilation (DA) for the non-differentiable parameterized moist physical processes is a complicated and difficult problem, which may result in the discontinuity of the cost function (CF) and the emergence of multiple extreme values.T…
View article: Lightning reconstructed Data
Lightning reconstructed Data Open
Lightning reconstructed Data calculated and used in the paper" Waveform Reconstruction of Lightning Current Based on Output-Error Model and Finite-Difference Time-Domain Method "
View article: Optically Powered Lightning Current Measurement System for High-Tower Observation
Optically Powered Lightning Current Measurement System for High-Tower Observation Open
The measurement of lightning striking the high tower is one of the most important ways to obtain the full-wave of lightning current. However, importance has never been attached to this important work until recent years in China. During the…