Improved reconstruction method for phase stepping data with stepping errors and dose fluctuations
نویسندگان
چکیده
منابع مشابه
Estimating Global Errors in Time Stepping*
This study introduces new strategies for global error estimation in time-stepping algorithms. The new methods propagate the defect along with the numerical solution much like the Zadunaisky procedure; however, the proposed approach allows for overlapped internal computations and, therefore, represents a generalization of the classical numerical schemes for solving differential equations with gl...
متن کاملShape Measurement by Phase-Stepping Method Using Multi-Line LEDs
Three-dimensional shape measurement is used in various fields such as robotics and inspection of industry production. It is requested to measure shape with high speed and high accuracy. It is also requested to make the system compact and low-cost. It is, however, difficult to satisfy these requests simultaneously for 3D shape measurement. In order to measure shape in real-time, Kato et al. prop...
متن کاملNewton Method for Nonlinear Dynamic Systems with Adaptive Time Stepping
This paper presents a nonlinear solver based on the Newton-Krylov methods, where the Newton equations are solved by Krylov-subspace type approaches. We focus on the solution of unsteady systems, in which the temporal terms are discretized by the backward Euler method using finite difference. To save computational cost, an adaptive time stepping is used to minimize the number of time steps. The ...
متن کاملFive Phase Hybrid Stepping Motor Microstepping Control
Single stepping a motor results in jerky movements of the motor, especially at lower speeds. Microstepping is used to achieve increased step resolution and smoother transitions between steps. In most applications, microstepping increases system performance while limiting noise and resonance problems. The paper presents a method for calculation the values of the phase currents for microstepping ...
متن کاملAn improved bound for the stepping-up lemma
The partition relation N → (n) l means that whenever the k-tuples of an N -element set are lcolored, there is a monochromatic set of size n, where a set is called monochromatic if all its k-tuples have the same color. The logical negation of N → (n) l is written as N 6→ (n) l . An ingenious construction of Erdős and Hajnal known as the stepping-up lemma gives a negative partition relation for h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2020
ISSN: 1094-4087
DOI: 10.1364/oe.385236