Publications by authors named "Jay A Farrell"

This article provides a comprehensive analysis of the impact of the increasing number of measurements and the possible increase in the number of faults in multi-constellation Global Navigation Satellite System (GNSS) Receiver Autonomous Integrity Monitoring (RAIM). Residual-based fault detection and integrity monitoring techniques are ubiquitous in linear over-determined sensing systems. An important application is RAIM, as used in multi-constellation GNSS-based positioning.

View Article and Find Full Text PDF

Distributed algorithms have recently gained immense popularity. With regards to computer vision applications, distributed multi-target tracking in a camera network is a fundamental problem. The goal is for all cameras to have accurate state estimates for all targets.

View Article and Find Full Text PDF

The performance of dynamic scene algorithms often suffers because of the inability to effectively acquire features on the targets, particularly when they are distributed over a wide field of view. In this paper, we propose an integrated analysis and control framework for a pan, tilt, zoom (PTZ) camera network in order to maximize various scene understanding performance criteria (e.g.

View Article and Find Full Text PDF

This paper considers tracking control for single-input, single-output nonaffine dynamic systems. A performance-dependent self-organizing approximation-based approach is proposed. The designer specifies a positive tracking error criterion.

View Article and Find Full Text PDF

Camera networks are being deployed for various applications like security and surveillance, disaster response and environmental modeling. However, there is little automated processing of the data. Moreover, most methods for multicamera analysis are centralized schemes that require the data to be present at a central server.

View Article and Find Full Text PDF

Adaptive approximation-based control typically uses approximators with a predefined set of basis functions. Recently, spatially dependent methods have defined self-organizing approximators where new locally supported basis elements were incorporated when existing basis elements were insufficiently excited. In this paper, performance-dependent self-organizing approximators will be defined.

View Article and Find Full Text PDF
Chemical plume source localization.

IEEE Trans Syst Man Cybern B Cybern

October 2006

This paper addresses the problem of estimating a likelihood map for the location of the source of a chemical plume using an autonomous vehicle as a sensor probe in a fluid flow. The fluid flow is assumed to have a high Reynolds number. Therefore, the dispersion of the chemical is dominated by turbulence, resulting in an intermittent chemical signal.

View Article and Find Full Text PDF
Article Synopsis
  • The paper presents a learning adaptive control framework that utilizes statistical learning and nonlinear function approximation to enhance control system performance.
  • It develops a method for approximating unknown functions in dynamic systems using piecewise linear models and adapts parameters in real-time based on tracking and estimation errors.
  • The framework is initially applied to first-order SISO systems, proven for stability, and then extended to higher-order SISO and MIMO systems, demonstrating effectiveness through numerical simulations.
View Article and Find Full Text PDF