# IEEE Control Systems Letters

## Filter Results

Displaying Results 1 - 13 of 13
• ### IEEE Control Systems Letters Editorial Board

Publication Year: 2018, Page(s): C2
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• ### A Track-to-Track Fusion Method for Tracks With Unknown Correlations

Publication Year: 2018, Page(s):189 - 194
| | PDF (620 KB)

This letter deals with the problem of track-totrack fusion under unknown correlations. We propose a novel method to construct the correlation terms between tracks from two sensors. We start by showing that the cross-covariance matrix of any two tracks can be expressed as the product of square roots of the tracks' covariance matrices and a contraction matrix. Then, we propose an optimization proble... View full abstract»

• ### Towards Encrypted MPC for Linear Constrained Systems

Publication Year: 2018, Page(s):195 - 200
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We present an encrypted model predictive control (MPC) scheme for linear constrained systems. More precisely, we show that homomorphic encryption can be used to realize a secure and private cloud-based evaluation of an MPC if the corresponding piecewise affine control law is explicitly given. View full abstract»

• ### Time-Optimal Collaborative Guidance Using the Generalized Hopf Formula

Publication Year: 2018, Page(s):201 - 206
| | PDF (618 KB)

Presented is a new method for calculating the time-optimal guidance control for a multiple vehicle pursuit-evasion system. A joint differential game of k pursuing vehicles relative to the evader is constructed, and a Hamilton-Jacobi-Isaacs equation that describes the evolution of the value function is formulated. The value function is built such that the terminal cost is the squared distance from ... View full abstract»

• ### Generalized Absolute Stability Using Lyapunov Functions With Relaxed Positivity Conditions

Publication Year: 2018, Page(s):207 - 212
| | PDF (558 KB)

Conditions are given for verifying stability and computing upper bounds on the induced (regional) L2 gain for systems defined by vector fields which are, along with their Jacobian, rational in the states and sector bounded nonlinearities. A class of candidate Lyapunov functions is considered that are polynomial on the states and the nonlinearities and have a polynomial scaled Lurie-Post... View full abstract»

• ### Exploiting symmetry for discrete-time reachability computations

Publication Year: 2018, Page(s):213 - 217
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We present a method of computing backward reachable sets for nonlinear discrete-time control systems possessing continuous symmetries. The starting point is a dynamic game formulation of reachability analysis where control inputs aim to maintain the state variables within a target tube despite disturbances. Our method exploits symmetry to compute the reachable sets in a lower-dimensional space, en... View full abstract»

• ### The Interconnection of Quadratic Droop Voltage Controllers Is a Lotka-Volterra System: Implications for Stability Analysis

Publication Year: 2018, Page(s):218 - 223
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This letter studies the stability of voltage dynamics for a power network in which nodal voltages are controlled by means of quadratic droop controllers with nonlinear AC reactive power as inputs. We show that the voltage dynamics is a Lotka-Volterra system, which is a class of nonlinear positive systems. We study the stability of the closed-loop system by proving a uniform ultimate boundedness re... View full abstract»

• ### Conic-Sector-Based Analysis and Control Synthesis for Linear Parameter Varying Systems

Publication Year: 2018, Page(s):224 - 229
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We present a conic sector theorem for linear parameter varying (LPV) systems in which the traditional definition of conicity is violated for certain values of the parameter. We show that such LPV systems can be defined to be conic in an average sense if the parameter trajectories are restricted so that the system operates with such values of the parameter sufficiently rarely. We then show that suc... View full abstract»

• ### Stability Analysis and State-Feedback Control of LPV Systems With Piecewise Constant Parameters Subject to Spontaneous Poissonian Jumps

Publication Year: 2018, Page(s):230 - 235
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Linear parameter-varying systems with piecewise constant parameters subject to spontaneous Poissonian jumps are a class of systems that does not seem to have been thoroughly considered in the literature. We partially fill this gap here by providing sufficient stability and performance analysis conditions stated in terms of infinite-dimensional LMI problems that can be solved using sum of squares p... View full abstract»

• ### Adaptive Output Formation-Tracking of Heterogeneous Multi-Agent Systems Using Time-Varying $mathcal {L}_{2}$ -Gain Design

Publication Year: 2018, Page(s):236 - 241
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This letter investigates the adaptive output formation-tracking problem of general linear heterogeneous multi-agent systems (MAS). The leader's dynamics are only known to its neighboring followers. All followers are assumed to be non-introspective, i.e., they have no self-knowledge, and only receive relative output information from neighbors. First, both the desired formation and the formation ref... View full abstract»

• ### Static Output-Feedback Stabilization for MIMO LTI Positive Systems using LMI-based Iterative Algorithms

Publication Year: 2018, Page(s):242 - 247
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This letter proposes two iterative algorithms for solving static output feedback stabilization problem for LTI multi-input multi-output systems. Contrary to the existing literature, in this letter, no restrictive assumption has been made on the state-space description of the open-loop plant for which a static output feedback controller is to be designed to synthesize a stable internally positive s... View full abstract»

• ### Distributed Utility Estimation With Heterogeneous Relative Information

Publication Year: 2018, Page(s):248 - 253
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In this letter, we consider a scenario where a set of agents, interconnected by a network topology, aim at computing an estimate of their own utility, importance or value, based on pairwise relative information having heterogeneous nature. In more detail, the agents are able to measure the difference between their value and the value of some their neighbors, or have an estimate of the ratio betwee... View full abstract»

• ### Controllability of Boolean Networks via Mixed Controls

Publication Year: 2018, Page(s):254 - 259
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Controllability is one of the most important properties of a Boolean control network (BCN). Essentially there are two kinds of controls: 1) networked inputs and 2) free logical inputs. This letter considers controllability of BCNs under mixed controls. The technique proposed is to convert a BCN with two kinds of controls into a set controllability problem. Using results obtained for set controllab... View full abstract»

## Aims & Scope

The IEEE Control Systems Letters (L-CSS) publishes peer-reviewed brief articles that provide a rapid and concise account of innovative ideas regarding the theory, design, and applications of all aspects of control engineering.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Prof.ssa M. Elena Valcher
Dipartimento di Ingegneria dell'Informazione