Search Results for author: Vrushabh Zinage

Found 9 papers, 2 papers with code

Neural Differentiable Integral Control Barrier Functions for Unknown Nonlinear Systems with Input Constraints

no code implementations12 Dec 2023 Vrushabh Zinage, Rohan Chandra, Efstathios Bakolas

In this paper, we propose a deep learning based control synthesis framework for fast and online computation of controllers that guarantees the safety of general nonlinear control systems with unknown dynamics in the presence of input constraints.

Imitation Learning

Disturbance Observer-based Robust Integral Control Barrier Functions for Nonlinear Systems with High Relative Degree

1 code implementation29 Sep 2023 Vrushabh Zinage, Rohan Chandra, Efstathios Bakolas

Towards this aim, we first construct a governing augmented state space model consisting of the equations of motion of the original system, the integral control law and the nonlinear disturbance observer.

Semi-global Exponential Stability for Dual Quaternion Based Rigid-Body Tracking Control

no code implementations24 May 2023 Vrushabh Zinage, S P Arjun Ram, Maruthi R. Akella, Efstathios Bakolas

Semi-Global Exponential Stability (SGES) is proved for the combined attitude and position rigid body motion tracking problem, which was previously only known to be asymptotically stable.

Collision Avoidance

Neural Koopman Control Barrier Functions for Safety-Critical Control of Unknown Nonlinear Systems

no code implementations16 Sep 2022 Vrushabh Zinage, Efstathios Bakolas

We prove that the learned CBF for the latter bilinear system is also a valid CBF for the unknown nonlinear system by characterizing the $\ell^2$-norm error bound between these two systems.

valid

Neural Koopman Lyapunov Control

1 code implementation13 Jan 2022 Vrushabh Zinage, Efstathios Bakolas

In this paper, we propose a framework to construct these stabilizable bilinear models and identify its associated observables from data by simultaneously learning a bilinear Koopman embedding for the underlying unknown control affine nonlinear system as well as a Control Lyapunov Function (CLF) for the Koopman based bilinear model using a learner and falsifier.

Koopman Operator Based Modeling and Control of Rigid Body Motion Represented by Dual Quaternions

no code implementations11 Oct 2021 Vrushabh Zinage, Efstathios Bakolas

In this paper, we systematically derive a finite set of Koopman based observables to construct a lifted linear state space model that describes the rigid body dynamics based on the dual quaternion representation.

Optimal Sensor Gain Control for Minimum-Information Estimation of Continuous-Time Gauss-Markov Processes

no code implementations28 Sep 2021 Vrushabh Zinage, Takashi Tanaka, Valeri Ugrinovskii

We consider the scenario in which a continuous-time Gauss-Markov process is estimated by the Kalman-Bucy filter over a Gaussian channel (sensor) with a variable sensor gain.

Scheduling

Minimum-fuel Spacecraft Rendezvous based on Sparsity Promoting Optimization

no code implementations17 Sep 2021 Vrushabh Zinage, Efstathios Bakolas

In this paper, we consider the classical spacecraft rendezvous problem in which the so-called active spacecraft has to approach the target spacecraft which is moving in an elliptical orbit around a planet by using the minimum possible amount of fuel.

Compressive Sensing

Koopman Operator Based Modeling for Quadrotor Control on $SE(3)$

no code implementations4 Mar 2021 Vrushabh Zinage, Efstathios Bakolas

In this paper, we propose a Koopman operator based approach to describe the nonlinear dynamics of a quadrotor on SE(3) in terms of an infinite-dimensional linear system which evolves in the space of observable functions (lifted space) and which is more appropriate for control design purposes.

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