Browsing by Subject "Observability"
Now showing items 120 of 26

Article
Adaptive LQ control with antiwindup augmentation to optimize UAV performance in autonomous soaring applications
(2008)The performance of a glider can be considerably improved by means of soaring and optimization of its trajectory. Recent advances in the area of static soaring assume known linear glider dynamics and no actuator saturation ...

Conference Object
Advanced static soaring flight controls for input constrained aircraft
(2010)Control surface actuator nonlinearities are recognized as a source of significant problems in flight control system design and verification. Recently developed adaptive control design methodologies with antiwindup ...

Conference Object
Aircraft dynamics with input rate constraints: An adaptive flight control application
(2009)Magnitude and rate limitations imposed on the input signal in control systems can be handled using antiwindup compensator design procedures with nearoptimal system performance guarantees in case the system experiences ...

Article
Bank filters for ML parameter estimation via the ExpectationMaximization algorithm: The continuoustime case
(1998)In this paper we consider continuoustime partially observed systems in which the parameters are unknown. We employ conditional moment generating functions of integrals and stochastic integrals to derive new maximumlikelihood ...

Article
Certain nonlinear partially observable stochastic optimal control problems with explicit control laws equivalent to LEQG/LQG problems
(1997)This paper is concerned with partially observed stochastic optimal control problems when nonlinearities enter the dynamics of the unobservable state and the observations as gradients of potential functions. Explicit ...

Article
Classes of nonlinear partially observable stochastic optimal control problems with explicit optimal control laws
(1998)This paper introduces certain nonlinear partially observable stochastic optimal control problems which are equivalent to completely observable control problems with finitedimensional state space. In some cases the optimal ...

Article
Control of continuoustime linear Gaussian systems over additive Gaussian wireless fading channels: A separation principle
(2008)This note is concerned with the control of continuoustime linear Gaussian systems over additive white noise wireless fading channels subject to capacity constraints. Necessary and sufficient conditions are derived, for ...

Conference Object
Control over wireless communication channel for continuoustime systems
(2005)This paper is concerned with the control of one dimensional continuous time linear Gaussian systems over additive white noise wireless fading channels subject to capacity constraints. Necessary and sufficient conditions ...

Article
Digraph analysis of largescale systems: The system primitive
(1979)Mapping differential equations into digraphs is shown to give additional insight into system properties, such as controllability and observability. The concept of the system primitive is introduced. © 1979, The Institution ...

Article
Distributed function calculation via linear iterative strategies in the presence of malicious agents
(2011)Given a network of interconnected nodes, each with its own value (such as a measurement, position, vote, or other data), we develop a distributed strategy that enables some or all of the nodes to calculate any arbitrary ...

Conference Object
Exact filters for NewtonRaphson parameter estimation algorithms for continuoustime partially observed stochastic systems
(IEEE, 1999)This paper presents explicit finitedimensional filters for implementing NewtonRaphson (NR) parameter estimation algorithms. The models which exhibit nonlinear parameter dependence are stochastic, continuoustime and ...

Conference Object
Information dissemination in networks via linear iterative strategies over finite fields
(2009)Given an arbitrary network of interconnected nodes, each with an initial value from a discrete set, we consider the problem of distributively disseminating these initial values under the constraint that the nodes can only ...

Conference Object
Maximum Likelihood parameter estimation from incomplete data via the sensitivity equations: The continuoustime case
(IEEE, 1999)The problem of estimating the parameters for continuoustime partially observed systems is discussed. New exact filters for obtaining Maximum Likelihood (ML) parameter estimates via the Expectation Maximization algorithm ...

Article
Necessary conditions of optimization for partially observed controlled diffusions
(1999)Necessary conditions are derived for stochastic partially observed control problems when the control enters the drift coefficient and correlation between signal and observation noise is allowed. The problem is formulated ...

Conference Object
On delayed observers for linear systems with unknown inputs
(2005)We present a method for constructing reducedorder state observers for linear systems with unknown inputs. Our design provides a characterization of observers with delay, which eases the established necessary conditions ...

Conference Object
On the time complexity of information dissemination via linear iterative strategies
(2010)Given an arbitrary network of interconnected nodes, each with an initial value, we study the number of timesteps required for some (or all) of the nodes to gather all of the initial values via a linear iterative strategy. ...

Conference Object
Optimal sensor selection for structural observability in Discrete Event Systems modeled by Petri nets
(2007)This paper studies sensor selection problems in Discrete Event Systems modeled by Petri nets with outputs (i.e., Petri nets with both transition sensors and place sensors). The goal is to place sensors so as to maintain ...

Article
Partial state observers for linear systems with unknown inputs
(2008)We consider the problem of constructing partial state observers for discretetime linear systems with unknown inputs. Specifically, for any given system, we develop a design procedure that characterizes the set of all ...

Article
Partially observable nonlinear risksensitive control problems: Dynamic programming and verification theorems
(1997)In this paper, we consider continuoustime partially observable optimal control problems with exponentialofintegral cost criteria. We derive a rigorous verification theorem when the state and control enter nonlinear in ...

Conference Object
Position error signal estimation at high sampling rates using data and servo sector measurements
(2002)Track density in hard disk drives (HDD) is related to the performance characteristics of the HDD servo control system. Higher track density can be achieved by improving the performance characteristics of the servo controller ...