Source Themes

A Hamilton-Jacobi Approach for Nonlinear Model Predictive Control in Applications with Navigational Uncertainty

This paper introduces a novel methodology that leverages the Hamilton-Jacobi solution to enhance non-linear model predictive control (MPC) in scenarios affected by navigational uncertainty. Using Hamilton-Jacobi-Theoretic approach, a methodology to …

Sparsity Enhanced Aerodynamic Parameter Estimation for Nonlinear Aircraft Model

This paper introduces an innovative approach to aerodynamic parameter estimation for nonlinear aircraft models, specifically addressing the limitations inherent in traditional methods, such as overfitting and ill-conditioning. Expanding upon the …

Sparse Approximate Hamilton-Jacobi Solutions for Optimal Feedback Control with Terminal Constraints

A semi-analytic method is proposed to solve a class of optimal control problems while exploiting its underlying Hamiltonian structure. Optimal control problems with a fixed final state at a fixed terminal time are considered. The solution methodology …

Stochastic Reachability Analysis using Sparse-Collocation Method

A computationally efficient approach is presented to compute the reachability set for a nonlinear system. A reachability set is defined as the computation of states a system can reach given the bounds on system inputs, parameters, and initial …

Leveraging Hamiltonian Structure for Accurate Uncertainty Propagation

In this work, we leverage the Hamiltonian kind structure for accurate uncertainty propagation through a nonlinear dynamical system. The developed approach utilizes the fact that the stationary probability density function is purely a function of the …

A Computationally Efficient Approach for Stochastic Reachability Set Analysis

The reachability set is defined as the collection of all states which can be traversed from arbitrary initial conditions due to the application of admissible control. Three different prob- abilistic approaches to compute the reachability sets for a …

Stochastic Reachability Analysis for the Hypersonic Re-entry Problem

In this paper, a computationally efficient approach is presented to enable onboard computation of reachability sets for the hypersonic re-entry problem. The main idea is to consider the bounded control variables as random variables and represent the …