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International Symposium on Space Terahertz Technology
- 2006
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Samlingsverk (redaktörskap) (refereegranskat)abstract
- The 16th International Symposium on Space Terahertz Technology was held at Chalmers, Göteborg, Sweden on May 2-4, 2005. This was the fi rst time the ISSTT meeting was held outside the US. More than 150 delegates from Europe, US and Asia attended and 147 scientifi c papers were presented. The meeting was organised by research groups at the microwave electronics laboratory, MC2, and GARD, Onsala space observatory. The programme was divided into 11 oral sessions with 63 papers (5 invited) and one poster session with 83 papers. Latest result on terahertz technologies for space applications were presented such as sensitive superconducting electronics (HEB/SIS), detectors, sources and systems. New applications of terahertz technology, e.g. for biotechnology, were also presented by Peter Siegel, Caltech (invited talk). Furthermore, we offered lab tours through MC2, conference dinner at Elfsborgs Fästning and fi nally a trip to Onsala space observatory. The symposium was sponsored by the Swedish Research Council (VR), IEEE Sweden Section, Swedish Space Corporation, Ericsson AB, COMSOL AB and our exhibitors: Omnisys Instruments AB, SAAB Ericsson Space AB, and European Southern Observatory (ESO). I would like to thank these organisations for their support. I would also like to thank everyone who helped to make the Symposium a success: international steering committee for advice and for reviewing abstracts; local organising committee; Eva Hellberg and Peter Jönsson for WEB support; Monica Hansen-Torvaldsson, Catharina Forssén, and Ingrid Collin for help with registrations and payments; Chalmers president Jan-Eric Sundgren and Erik Kollberg for opening the meeting; staff at Chalmers Conference Center; the session chairmen; and everyone who attended or contributed a presentation. Also an additional thanks to Mattias Ingvarson for putting this proceeding together.
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Control of Complex Systems
- 2001
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- The world of artificial systems is reaching hitherto undreamed-of levels of complexity. Surface traffic, electricity distribution, mobile communications, etc., demonstrate that problems are arising that are beyond classical scientific or engineering knowledge. In order that our ability to control such systems should not be hindered by lack of comprehension, there is an on-going effort to understand them. This book is an example of the types of approach that European researchers are using to tackle problems derived from systems' complexity. It has grown out of activities in the Control of Complex Systems (COSY) research program the goals of which are to promote multi-disciplinary activity leading to a deeper understanding and further development of control technologies for complex systems and if possible, to develop the theory underlying such systems. The material in this book represents a selection of the results of the COSY program and is organised as a collection of essays of varying nature: surveys of essential areas, discussion of specific problems, case studies, and benchmark problems. Topics covered include: Modelling complex physical systems; Passivity-based control of non-linear systems; Aspects of fault identification and fault tolerance; Control design; Learning control; Satellite attitude control. Complex systems appear in many different fields and for this reason this book should be of interest to scientists, researchers and industrial engineers with a broad spectrum of experience.
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Directions in Mathematical Systems : Theory and Optimization
- 2003
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- This volume provides a compilation of recent contributions on feedback and robust control, modeling, estimation and filtering. They were presented on the occasion of the sixtieth birthday of Anders Lindquist, who has delivered fundamental contributions to the fields of systems, signals and control for more than three decades. His contributions include seminal work on the role of splitting subspaces in stochastic realization theory, on the partial realization problem for both deterministic and stochastic systems, on the solution of the rational covariance extension problem and on system identification. Lindquist's research includes the development of fast filtering algorithms, leading to a nonlinear dynamical system which computes spectral factors in its steady state, and which provide an alternate, linear in the dimension of the state space, to computing the Kalman gain from a matrix Riccati equation. He established the separation principle for stochastic function differential equations, including some fundamental work on optimal control for stochastic systems with time lags. His recent work on a complete parameterization of all rational solutions to the Nevanlinna-Pick problem is providing a new approach to robust control design.
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Distributed Decision Making and Control
- 2012
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Distributed Decision Making and Control is a mathematical treatment of relevant problems in distributed control, decision and multi-agent systems, The research reported was prompted by the recent rapid development in large-scale networked and embedded systems and communications. One of the main reasons for the growing complexity in such systems is the dynamics introduced by computation and communication delays. Reliability, predictability, and efficient utilization of processing power and network resources are central issues and the new theory and design methods presented here are needed to analyze and optimize the complex interactions that arise between controllers, plants and networks. The text also helps to meet requirements arising from industrial practice for a more systematic approach to the design of distributed control structures and corresponding information interfaces Theory for coordination of many different control units is closely related to economics and game theory network uses being dictated by congestion-based pricing of a given pathway. The text extends existing methods which represent pricing mechanisms as Lagrange multipliers to distributed optimization in a dynamic setting. In Distributed Decision Making and Control, the main theme is distributed decision making and control with contributions to a general theory and methodology for control of complex engineering systems in engineering, economics and logistics. This includes scalable methods and tools for modeling, analysis and control synthesis, as well as reliable implementations using networked embedded systems. Academic researchers and graduate students in control science, system theory, and mathematical economics and logistics will find mcu to interest them in this collection, first presented orally by the contributors during a sequence of workshops organized in Spring 2010 by the Lund Center for Control of Complex Engineering Systems, a Linnaeus Center at Lund University, Sweden.
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Imaging and sensing for unmanned aircraft systems Volume 2: Deployment and applications
- 2020
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- This two volume book set explores how sensors and computer vision technologies are used for the navigation, control, stability, reliability, guidance, fault detection, self-maintenance, strategic re-planning and reconfiguration of unmanned aircraft systems (UAS). Volume 1 concentrates on UAS control and performance methodologies including Computer Vision and Data Storage, Integrated Optical Flow for Detection and Avoidance Systems, Navigation and Intelligence, Modeling and Simulation, Multisensor Data Fusion, Vision in Micro-Aerial Vehicles (MAVs), Computer Vision in UAV using ROS, Security Aspects of UAV and Robot Operating System, Vision in Indoor and Outdoor Drones, Sensors and Computer Vision, and Small UAVP for Persistent Surveillance. Volume 2 focuses on UAS deployment and applications including UAV-CPSs as a Testbed for New Technologies and a Primer to Industry 5.0, Human-Machine Interface Design, Open Source Software (OSS) and Hardware (OSH), Image Transmission in MIMO-OSTBC System, Image Database, Communications Requirements, Video Streaming, and Communications Links, Multispectral vs Hyperspectral Imaging, Aerial Imaging and Reconstruction of Infrastructures, Deep Learning as an Alternative to Super Resolution Imaging, and Quality of Experience (QoE) and Quality of Service (QoS).
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