9 citations · 22 across the 10 of their papers we have counts for
11 papers
Model reference adaptive control for state and input constrained linear systems
Sudipta Chattopadhyay, Srikant Sukumar, Vivek Natarajan
State and input constraints are ubiquitous in all engineering systems. In this article, we derive adaptive controllers for uncertain linear systems under pre-specified state and in…
Adaptive identification of SISO linear infinite-dimensional systems
Sudipta Chattopadhyay, Srikant Sukumar, Vivek Natarajan
We propose an adaptive algorithm for identifying the unknown parameter in a linear exponentially stable single-input single-output infinite-dimensional system. We assume that the t…
Motion planning for parabolic equations using flatness and finite-difference approximations
Soham Chatterjee, Vivek Natarajan
We consider the problem of finding an input signal which transfers a linear boundary controlled 1D parabolic partial differential equation with spatially-varying coefficients from…
Transient and Asymptotic Properties of Robust Adaptive Controllers in the Presence of Non-Coercive Lyapunov Functions
Aditya A. Paranjape, Vivek Natarajan, Supratim Ghosh
Adaptive control architectures often make use of Lyapunov functions to design adaptive laws. We are specifically interested in adaptive control methods, such as the well-known L1 a…
Compensating PDE actuator and sensor dynamics using Sylvester equation
Vivek Natarajan
We consider the problem of stabilizing PDE-ODE cascade systems in which the input is applied to the PDE system whose output drives the ODE system. We also consider the dual problem…
Modelling, Controllability and Gait Design for a Spherical Flexible Swimmer
Sudin Kadam, Ravi N. Banavar, Vivek Natarajan
This paper discusses modelling, controllability and gait design for a spherical flexible swimmer. We first present a kinematic model of a low Reynolds number spherical flexible swi…
Minimal order controllers for output regulation of nonlinear systems
Vivek Natarajan, George Weiss
This paper is about the nonlinear local error feedback regulator problem. The plant is a nonlinear finite-dimensional system with a single control input and a single output and it…
The global bifurcation picture for ground states in nonlinear Schrodinger equations
Eduard Kirr, Vivek Natarajan
In this paper, we propose a method of finding all coherent structures supported by a given nonlinear wave equation. It relies on enhancing the recent global bifurcation theory as d…
Almost global asymptotic stability of a grid-connected synchronous generator
Vivek Natarajan, George Weiss
We study the global asymptotic behavior of a grid-connected constant field current synchronous generator (SG). The grid is regarded as an "infinite bus", i.e. a three-phase AC volt…
Stability of the integral control of stable nonlinear systems
George Weiss, Vivek Natarajan
PI controllers are the most widespread type of controllers and there is an intuitive understanding that if their gains are sufficiently small and of the correct sign, then they alw…
Control System Design for Tricopter using Filters and PID controller
Vishal P Venkata, Natarajan V
The purpose of this paper is to present the control system design of Tricopter. We have presented the implementation of control system in software in this paper. Tricopter's contro…