Figure 2 - uploaded by Timothy J. Bukowski
Content may be subject to copyright.
Processing times for varying lenslet array sizes. Processing times calculated from the average of 10000 frames using the standard least-squares Southwell 7 reconstruction algorithm.
Source publication
Standard methods of Shack-Hartmann wavefront reconstruction rely on solving a system of linear equations, extracting wavefront estimates from measured wavefront slopes, which are calculated by retrieving centroids from a Shack-Hartmann Wavefront Sensor (SHWFS). As the dimensions of a micro-lens array in the SHWFS increase, the computational cost of...
Similar publications
O objetivo primordial do presente artigo consiste em apresentar a caracterização do regime pluvial na bacia hidrográfica do rio Ivinhema, mediante a utilização da técnica de pluviogramas. A bacia está localizada na porção sul do Estado de Mato Grosso do Sul e sua localização climatológica encontra-se em uma faixa de limite zonal, havendo um equilíb...
Limit-cycle oscillations are studied for ion temperature gradient turbulence, which, in the absence of large diamagnetic (mean) shear flows, saturates through energy transfer from unstable modes to large-scale stable modes via zonal-flow intermediary modes. Oscillations of zonal flow and turbulence levels are strongly constrained by the reactive, l...
The modification of the dynamics on the f-plane due to the inclusion of the latitudinal variation of the Coriolis frequency, quantified by β, is examined by comparing steady and time-dependent solutions for different values of β, including 0. The comparisons are made for analytic expressions and numerical simulations of the solutions of two physica...
This study investigates dynamic and thermodynamic components of moisture flux convergence in Southwest China (SW-MFC) and their underlying physical mechanisms during early and late summer. Using precipitation observation and CRA-40 reanalysis datasets from 1979 to 2023, the results show that both dynamic and thermodynamic processes modulate the SW-...
The classical drift-fluid (modified) Hasegawa–Wakatani model for quasi-three-dimensional resistive drift wave turbulence in magnetized plasmas is introduced into a gyrofluid model including consistent finite Larmor radius effects. The transition from a turbulence dominated to a strong zonal flow state through variation of the dissipative coupling s...
Citations
... Applications range from finding centroid displacements, 19 to reconstructing the wavefront from a slope field, 20 to directly mapping the SHWFS irradiance pattern to the wavefront. 21,22 Machine learning has also been used for wavefront sensor fusion and wavefront prediction in aero-optics. [23][24][25] The purpose of this paper is to propose a robust solution to estimating the |∆ϕ| from the observation-plane irradiance patterns alone through the use of machine learning. ...
