TY  - JOUR
A1  - Holtrup, S.
A1  - Sadeghfam, Arash
A1  - Heuermann, Holger
A1  - Awakowicz, P.
T1  - Characterization and optimization technique for microwave-driven high-intensity discharge lamps using hot S-parameters
JF  - IEEE transactions on microwave theories and techniques
N2  - High-intensity discharge lamps can be driven by radio-frequency signals in the ISM frequency band at 2.45 GHz, using a matching network to transform the impedance of the plasma to the source impedance. To achieve an optimal operating condition, a good characterization of the lamp in terms of radio frequency equivalent circuits under operating conditions is necessary, enabling the design of an efficient matching network. This paper presents the characterization technique for such lamps and presents the design of the required matching network. For the characterization, a high-intensity discharge lamp was driven by a monofrequent large signal at 2.45 GHz, whereas a frequency sweep over 300 MHz was performed across this signal to measure so-called small-signal hot S-parameters using a vector network analyzer. These parameters are then used as an equivalent load in a circuit simulator to design an appropriate matching network. Using the measured data as a black-box model in the simulation results in a quick and efficient method to simulate and design efficient matching networks in spite of the complex plasma behavior. Furthermore, photometric analysis of high-intensity discharge lamps are carried out, comparing microwave operation to conventional operation.
Y1  - 2014
U6  - http://dx.doi.org/10.1109/TMTT.2014.2342652
SN  - 0018-9480
VL  - 62
IS  - 10
SP  - 2471
EP  - 2480
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Niemüller, Tim
A1  - Ewert, Daniel
A1  - Reuter, Sebastian
A1  - Ferrein, Alexander
A1  - Jeschke, Sabina
A1  - Lakemeyer, Gerhard
T1  - RoboCup logistics league sponsored by festo: A competitive factory automation testbed
T2  - RoboCup 2013: Robot World Cup XVII :  Eindhoven; Netherlands; 1 July 2013 through 1 July 2013. (Lecture notes in computer science ; 8371)
N2  - A new trend in automation is to deploy so-called cyber-physical systems (CPS) which combine computation with physical processes. The novel RoboCup Logistics League Sponsored by Festo (LLSF) aims at such CPS logistic scenarios in an automation setting. A team of robots has to produce products from a number of semi-finished products which they have to machine during the game. Different production plans are possible and the robots need to recycle scrap byproducts. This way, the LLSF is a very interesting league offering a number of challenging research questions for planning, coordination, or communication in an application-driven scenario. In this paper, we outline the objectives of the LLSF and present steps for developing the league further towards a benchmark for logistics scenarios for CPS. As a major milestone we present the new automated referee system which helps in governing the game play as well as keeping track of the scored points in a very complex factory scenario.
Y1  - 2014
SN  - 978-3-662-44467-2 (Print) 978-3-662-44468-9 (Online)
SP  - 336
EP  - 347
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Alhwarin, Faraj
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
T1  - IR stereo kinect: improving depth images by combining structured light with IR stereo
Y1  - 2014
SP  - 1
EP  - 9
ER  - 
TY  - BOOK
A1  - Hoever, Georg
T1  - Vorkurs Mathematik : Theorie und Aufgaben mit vollständig durchgerechneten Lösungen. - (Springer-Lehrbuch)
Y1  - 2014
SN  - 978-3-642-54870-3 (Druckausg.)
SN  - 978-3-642-54871-0 (E-Book)
PB  - Springer Spektrum
CY  - Berlin [u.a.]
ER  - 
TY  - BOOK
A1  - Hüning, Felix
T1  - The fundamentals of electrical engineering for mechatronics
Y1  - 2014
SN  - 978-3-11-034991-7 (Druckausg.)
SN  - 978-3-11-030840-2 (E-Book)
PB  - de Gruyter
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Kallweit, Stephan
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
A1  - Reichert, Walter
T1  - Mobile Autonome Systeme in der Lehre, am Beispiel der ROS Summer School
T2  - Tagungsband AALE 2014 : das Forum für Fachleute der Automatisierungstechnik aus Hochschulen und Wirtschaft ; 11. Fachkonferenz, Regensburg ; [11. Konferenz für Angewandte Automatisierungstechnik in Lehre und Entwicklung / Ostbayerische Technische Hochschule Regensburg; VFAALE, Verein der Freunde und Förderer der Angewandten Automatisierungstechnik]
Y1  - 2014
SN  - 978-3-8356-7142-3
N1  - Die Textverteilung der elektronischen Zweitveröffentlichung entspricht nicht der der o.g. Verlagsausgabe.
SP  - 157
EP  - 163
PB  - Dt. Industrieverl.
CY  - München
ER  - 
TY  - JOUR
A1  - Wolf, Martin
A1  - Biesen, Ina van der
A1  - Greeb, Birgit
T1  - Mein Freund, die Uni
JF  - Die neue Hochschule : DNH : für anwendungsbezogene Wissenschaft und Kunst
Y1  - 2014
SN  - 0340-448X
N1  - Gedr. Ausgabe in der Bibliothek Eupener Str. vorhanden.
VL  - 2014
IS  - 2
SP  - 54
EP  - 56
PB  - HLB
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
T1  - Towards applying soccer moves in the RoboCup Standard Platform League
JF  - ÖGAI-Journal
Y1  - 2008
SN  - 0254-4326
VL  - Bd. 27
IS  - H. 3
SP  - 4
EP  - 9
ER  - 
TY  - BOOK
A1  - Ferrein, Alexander
A1  - Pauli, J.
A1  - Siebel, N. T.
A1  - Steinbauer, Gerald
T1  - Hybrid control for autonomous systems : [... 1st Workshop on Hybrid Control of Autonomous Systems - Integrating Learning, Deliberation and Reactive Control with the 21st International Joint Conference on Artificial Intelligence (IJCAI-09), held in Pasadena, CA, in July 2009] / ed. by Alexander Ferrein ...
Y1  - 2009
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
A1  - Potgieter, Anet
A1  - Steinbauer, Gerald
T1  - Self-aware robots - What do we need from learning, deliberation, and reactive control?
T2  - HYCAS 2009 : International Workshop on Hybrid Control of Autonomous Systems : Integrating Learning, Deliberation and Reactive Control : Pasadena, Calif., 13 July 2009
Y1  - 2009
SP  - 1
EP  - 5
PB  - AAAI Pr.
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
T1  - Autonome Entscheidungsfindung bei Robotern : Planwirtschaft
JF  - Linux-Magazin
Y1  - 2004
SN  - 1432-640X (Print)
IS  - 7
SP  - 50
EP  - 53
ER  - 
TY  - CHAP
A1  - Hartung, Frank
A1  - Hillgärtner, Michael
A1  - Schmitz, Günter
A1  - Schuba, Marko
A1  - Adolphs, Fabian
A1  - Hoffend, Jens
A1  - Theis, Jochen
T1  - IT-Sicherheit im Automobil
T2  - AmE 2014 : Automotive meets Electronics, Beiträge der 5. GMM-Fachtagung vom 18. bis 19. Februar 2014 in Dortmund. (GMM-Fachbericht ; 78)
Y1  - 2014
SN  - 978-3-8007-3580-8
SP  - CD-ROM
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Heuermann, Holger
A1  - Sadeghfam, Arash
A1  - Finger, Torsten
T1  - Alternative ignition system based on microwave plasma
T2  - Advanced ignition systems for gasoline engines : [Vorträge der 1st International Conference Advanced Ignition Systems for Gasoline Engines - 1. Internationale Tagung Zündsysteme für Ottomotoren, 12.-13. November 2012, Berlin]
Y1  - 2013
SN  - 9783816931904
SP  - 95
EP  - 103
PB  - Expert-Verl.
CY  - Renningen
ER  - 
TY  - CHAP
A1  - Wang, W.
A1  - Mensing, C.
A1  - Gligorevic, Snjezana
A1  - Jost, T.
A1  - Dammann, A.
T1  - Short term statistical analysis of outdoor to indoor propagation channel for geolocations
T2  - Proceedings of the 13th International OFDM Workshop : (InOWo '08), Aug. 27./28. 2008, Hamburg : Session 3A: Systems concepts
Y1  - 2008
SP  - 85
EP  - 89
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Steinbauer, Gerald
A1  - McPhillips, Graeme
A1  - Niemüller, Tim
A1  - Potgieter, Anet
T1  - Team Zadeat 2009 : team report
Y1  - 2009
VL  - 6
SP  - 1
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Niemüller, Tim
A1  - Steinbauer, Gerald
T1  - Team Zadeat 2010 : application for participation
Y1  - 2010
ER  - 
TY  - JOUR
A1  - Beck, Daniel
A1  - Buchleitner, Martin
A1  - Ferrein, Alexander
A1  - Niemüller, Tim
A1  - Steinbauer, Gerald
T1  - Mostly Harmless & AllemaniACs - mixed innovations
Y1  - 2014
SP  - 1
EP  - 8
ER  - 
TY  - JOUR
A1  - Vorst, Phillip
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - AllemaniACs3D team description
Y1  - 2006
SP  - 1
EP  - 6
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Steinbauer, Gerald
A1  - McPhillips, Graeme
A1  - Potgieter, Anet
T1  - Establishing the RoboCup Standard League in Africa - applying for the RoboCup Standard League with a German-Austrian-South African Research Project
Y1  - 2007
SP  - 1
EP  - 5
ER  - 
TY  - CHAP
A1  - Priede, Gareth
A1  - Ferrein, Alexander
T1  - Towards passive walking for the fully-actuated biped robot Nao
T2  - Emerging trends in computing, informatics, systems sciences, and engineering. (Lecture notes in electrical engineering : vol. 151)
N2  - Many biped robots deploy a form of gait that follows the zero moment point (ZMP) approach, that is, the robot is in a stable position at any point in time. This requires the robot to be fully actuated. While very stable, the draw-backs of this approach are a fairly slow gait and high energy consumption. An alternative approach is the so-called passive-dynamic walking, where the gait makes use of the inertia and dynamic stability of the robot. In this paper we describe our ongoing work of combining the principles of passive-dynamic walking on the fully-actuated biped robot Nao, which is also deployed for robotic soccer applications. We present a simple controller that allows the robot to stably rock sidewards, showing a closed limit-cycle. We discuss first results of superimposing a forward motion on the sidewards motion. Based on this we expect to endow the Nao with a fast, robust, and stable passive-dynamic walk on the fully-actuated Nao in the future.
Y1  - 2013
SN  - 978-1-4614-3557-0 ; 978-1-4614-3558-7
U6  - http://dx.doi.org/10.1007/978-1-4614-3558-7_18
SP  - 225
EP  - 236
PB  - Springer
CY  - New York, NY
ER  -