Results 41 to 50 of about 1,574 (222)
Pseudospectral Methods for Infinite-Horizon Optimal Control Problems [PDF]
, 2008 The article of record as published may be found at http://dx.doi.org/10.2514/1.33117A central computational issue in solving infinite-horizon nonlinear optimal control problems is the treatment of the horizon.
Fahroo, Fahroo, Ross, Michael I.
core
Sum-accelerated pseudospectral methods: the Euler-accelerated sinc algorithm [PDF]
, 1991 Pseudospectral discretizations of differential equations are much more accurate than finite differences for the same number of grid points N. The reason is that derivatives are approximated by a weighted sum of all N values of u(xi), rather than just ...
Boyd, John P., John P. Boyd
core +1 more source
Earthquake Spectra, Volume 42, Issue 2, May 2026.The U.S. Geological Survey recently updated the National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). The first version of the PRVI NSHM was released in 2003, and therefore this 2025 update includes over 20 years of new geologic, geophysical, and engineering data, methods, and models.
Allison M. Shumway +21 more
wiley +1 more source
Earthquake Spectra, Volume 42, Issue 2, May 2026.We evaluate, select, and describe the ground‐motion models (GMMs) used in the 2025 update of the U.S. National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). We identify the most appropriate models that align with GMM selection criteria for use in the PRVI region to improve the accuracy of seismic hazard assessments ...
Kyle B Withers +5 more
wiley +1 more source
Path Tracking of Autonomous Vehicle Based on Optimal Control
World Electric Vehicle JournalPath tracking control is a key technology in the research of intelligent vehicles. In the path tracking process of intelligent vehicles, there are multiple constraints and time-varying nonlinear system states.
Bingshuai Wu, Yingjie Liu, Qianqian Wang
doaj +1 more source
A pk-Adaptive Mesh Refinement for Pseudospectral Method to Solve Optimal Control Problem
IEEE Access, 2019 In this paper, a pk-adaptive mesh refinement of pseudospectral method is proposed for solving optimal control problem by using collocation at Legendre-Gauss-Lobatto (LGL) points, motivated by reducing the redundant collocation points in the state-of-art ...
Jun Huang +4 more
doaj +1 more source
Forward and Adjoint Calculations of Gravitational Potential in Heterogeneous, Aspherical Planets
Earth and Space Science, Volume 13, Issue 5, May 2026.Abstract We have developed a computational package for the calculation of numerically exact internal and external gravitational potential, its functional derivatives and sensitivity kernels, in an aspherical, heterogeneous planet. We detail our implementation, utilizing a transformation of the Poisson equation into a spherical reference domain, as well
Alex D. C. Myhill +2 more
wiley +1 more source
Advances in Mathematical Physics, 2014 A pseudospectral method based on the Fibonacci operational matrix is proposed to solve generalized pantograph equations with linear functional arguments.
Ayşe Betül Koç +2 more
doaj +1 more source
PySCP: A Multiple-Phase Optimal Control Software Using Sequential Convex Programming
International Journal of Aerospace Engineering, 2022 Optimal control problems are common in aerospace engineering. A Python software program called PySCP is described for solving multiple-phase optimal control problems using sequential convex programming methods.
Daxi Zhang, Yulin Zhang
doaj +1 more source
Pseudospectral Optimal Control for Military and Industrial Applications [PDF]
, 2006 —During the last decade, pseudospectral methods for optimal control, the focus of this tutorial session, have been rapidly developed as a powerful tool to enable new applications that were previously considered impossible due to the complicated nature of
Bollino, Kevin +13 more
core +1 more source