Browsing by Keywords "Control theory"
Now showing items 120 of 21

2D simultaneous localization and mapping for unmanned aerial vehicles
(2008)In this work, a 2D visionbased Simultaneous Localization and Mapping algorithm is developed for an Unmanned Aerial Vehicle flying at a constant altitude. We use visual features of images obtained from an onboard camera ... 
A Bayesian approach to respiration rate estimation via pulsebased ultrawideband signals
(2009)In this paper, theoretical limits on estimation of respiration rates via pulsebased ultrawideband (UWB) signals are studied in the presence of prior information about respiration related signal parameters. First, a ... 
Comparison of the CAFDF and sage algorithms in multipath channel parameter estimation
(2008)In this paper, performance of the recently proposed Cross Ambiguity Function  Direction Finding (CAFDF) technique is compared with the Space Alternating Generalized Expectation Maximization (SAGE) technique. The CAFDF, ... 
An exponential stability result for the wave equation
(Elsevier, 2002)We consider a system described by the onedimensional linear wave equation in a bounded domain with appropriate boundary conditions. To stabilize this system, we propose a dynamic boundary controller applied at the free ... 
Integral action based Dirichlét boundary control of Burgers equation
(2003)Modeling and boundary control for Burgers Equation is studied in this paper. Modeling has been done via processing of numerical observations through singular value decomposition with Galerkin projection. This results in a ... 
A Mathematical Model for Cholesterol Biosynthesis under Nicotine Exposure
(Elsevier B.V., 2016)In this paper, a mathematical model is considered for analyzing the impact of nicotine exposure to cholesterol biosynthesis. The dynamical model is nonlinear. Its equilibrium points are computed and conditions are provided ... 
On the boundary control of a flexible robot arm
(Institute of Electrical and Electronics Engineers, 2001)We consider a flexible robot arm modeled as a single flexible link clamped to a rigid body. We assume that the system performs only planar motion. For this system, we pose two control problems; namely, the orientation and ... 
On the control of chaotic systems in Lur'e form by using dither
(Institute of Electrical and Electronics Engineers, 199910)In this paper we propose the application of dither for controlling chaotic systems in the Lur'e form. Dither is a highfrequency periodic signal and has the effect of modifying the nonlinearity for some nonlinear systems. ... 
On the performance of linear leastsquares estimation in wireless positioning systems
(2008)A common technique for wireless positioning is to estimate timeofarrivals (TOAs) of signals traveling between a target node and a number of reference nodes, and then to determine the position of the target node based on ... 
On the Sprocedure and some variants
(Springer, 2006)We give a concise review and extension of Sprocedure that is an instrumental tool in control theory and robust optimization analysis. We also discuss the approximate SLemma as well as its applications in robust optimization. 
On the stabilization and stability robustness against small delays of some damped wave equations
(IEEE, 1995)In this note we consider a system which can be modeled by two different onedimensional damped wave equations in a bounded domain, both parameterized by a nonnegative damping constant. We assume that the system is fixed ... 
On the stabilization of a cable with a tip mass
(IEEE, 1994)In this note, we consider a vertical cable which is pinched at the upper end. A mass is attached at the lower end where a control force is also applied. We show that this hybrid system is uniformly stabilized by choosing ... 
Online balancing two independent criteria
(2008)We study the online bicriteria load balancing problem in this paper. We choose a system of distributed homogeneous file servers located in a cluster as the scenario and propose two online approximate algorithms for balancing ... 
Online bicriteria load balancing using object reallocation
(Institute of Electrical and Electronics Engineers, 200903)We study the bicriteria load balancing problem on two independent parameters under the allowance of object reallocation. The scenario is a system of $M$ distributed file servers located in a cluster, and we propose three ... 
Optimal hybrid control of a twostage manufacturing system
(2006)We consider a twostage serial hybrid system for which the arrival times are known and the service times are controllable. We derive some optimal sample path characteristics, in particular, we show that no buffering is ... 
Performance analysis of cross ambiguity functionDirection finding technique in multipath environments
(2008)In this paper, recently proposed Cross Ambiguity Function Direction Finding (CAFDF) array signal processing technique, which make use of the cross ambiguity function calculation, is compared with the MUltiple SIgnal ... 
Scene classification for contentbased image retrieval
(2008)Contentbased image indexing and retrieval have become important research problems with the use of large databases in a wide range of areas. In this study, a contentbased image retrieval system that is based on scene ... 
Stridetostride energy regulation for robust selfstability of a torqueactuated dissipative springmass hopper
(A I P Publishing LLC, 2010)In this paper, we analyze the selfstability properties of planar running with a dissipative springmass model driven by torque actuation at the hip. We first show that a twodimensional, approximate analytic return map ... 
Theoretical limits and a practical estimator for joint estimation of respiration and heartbeat rates using UWB impulse radio
(2007)In this paper, CramerRao lower bounds are derived fo r joint estimation of respiration and heartbeat rates via impulse radio ultrawideband signals. Generic models are employed for displacement functions due to respiration ... 
Theoretical limits on time delay estimation for ultrawideband cognitive radios
(2008)In this paper, theoretical limits on time delay estimation are studied for ultrawideband (UWB) cognitive radio systems. For a generic UWB spectrum with dispersed bands, the CramerRao lower bound (CRLB) is derived for ...