Search Results for author: Shirantha Welikala

Found 12 papers, 1 papers with code

Performance-Guaranteed Solutions for Multi-Agent Optimal Coverage Problems using Submodularity, Curvature, and Greedy Algorithms

no code implementations20 Mar 2024 Shirantha Welikala, Christos G. Cassandras

We consider a class of multi-agent optimal coverage problems in which the goal is to determine the optimal placement of a group of agents in a given mission space so that they maximize a coverage objective that represents a blend of individual and collaborative event detection capabilities.

Event Detection

Dissipativity-Based Decentralized Co-Design of Distributed Controllers and Communication Topologies for Vehicular Platoons

1 code implementation11 Dec 2023 Shirantha Welikala, Zihao Song, Panos J. Antsaklis, Hai Lin

However, it is beneficial to design both the platooning controller and the communication topology simultaneously, i. e., controller and topology co-design, especially in the cases of platoon splitting and merging.

Smooth Robustness Measures for Symbolic Control Via Signal Temporal Logic

no code implementations16 May 2023 Shirantha Welikala, Hai Lin, Panos J. Antsaklis

Moreover, the degree of satisfaction of STL specifications can be evaluated using ``STL robust semantics'' as a scalar robustness measure.

Computational Efficiency

Decentralized and Compositional Interconnection Topology Synthesis for Linear Networked Systems

no code implementations4 May 2023 Shirantha Welikala, Hai Lin, Panos J. Antsaklis

In this paper, we consider networked systems comprised of interconnected sets of linear subsystems and propose a decentralized and compositional approach to stabilize or dissipativate such linear networked systems via optimally modifying some existing interconnections and/or creating entirely new interconnections.

Centralized and Decentralized Techniques for Analysis and Synthesis of Non-Linear Networked Systems

no code implementations29 Sep 2022 Shirantha Welikala, Hai Lin, Panos J. Antsaklis

Second, we show that the centralized interconnection topology \emph{synthesis} techniques for these NSCs can also be developed as LMI problems.

Distributed Adaptive Backstepping Control for Vehicular Platoons with Mismatched Disturbances Using Vector String Lyapunov Functions

no code implementations5 Jul 2022 Zihao Song, Shirantha Welikala, Panos J. Antsaklis, Hai Lin

Using this notion, we propose an adaptive backstepping controller for the platoon such that the compositionality and the distributed nature of the controller can be ensured while the internal stability and string stability of the closed-loop system are formally guaranteed.

On-line Estimation of Stability and Passivity Metrics

no code implementations31 Mar 2022 Shirantha Welikala, Hai Lin, Panos J. Antsaklis

We consider the problem of on-line evaluation of critical characteristic parameters such as the L_2-gain (L2G), input feedforward passivity index (IFP) and output feedback passivity index (OFP) of non-linear systems using their input-output data.

Robust Approximate Simulation for Hierarchical Control of Piecewise Affine Systems under Bounded Disturbances

no code implementations4 Mar 2022 Zihao Song, Vince Kurtz, Shirantha Welikala, Panos J. Antsaklis, Hai Lin

First, a lower-dimensional linear system (abstraction) and an associated interface are designed to enable the output of the PWA system (concrete system) to track the output of the abstraction.

Minimax Multi-Agent Persistent Monitoring of a Network System

no code implementations17 Jan 2022 Samuel C. Pinto, Shirantha Welikala, Sean B. Andersson, Julien M. Hendrickx, Christos G. Cassandras

For a given visiting sequence, we prove that in an optimal dwelling time allocation the peak uncertainty is the same among all the targets.

Traveling Salesman Problem

Event-Driven Receding Horizon Control of Energy-Aware Dynamic Agents For Distributed Persistent Monitoring

no code implementations25 Feb 2021 Shirantha Welikala, Christos G. Cassandras

This paper addresses the persistent monitoring problem defined on a network where a set of nodes (targets) needs to be monitored by a team of dynamic energy-aware agents.

Event-Driven Receding Horizon Control for Distributed Estimation in Network Systems

no code implementations24 Sep 2020 Shirantha Welikala, Christos G. Cassandras

We consider the problem of estimating the states of a distributed network of nodes (targets) through a team of cooperating agents (sensors) persistently visiting the nodes so that an overall measure of estimation error covariance evaluated over a finite period is minimized.

Computational Efficiency

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