TY - JOUR A1 - Blank, Andreas A1 - Hahn, Stefan A1 - Heinlein, Sven A1 - Zindler, Klaus T1 - Development of a test rig for the precise positioning of a pedestrian dummy in driving tests JF - International Journal of Vehicle Safety KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2015 VL - 2015 IS - 2 SP - 144 EP - 164 PB - Inderscience Enterprises ER - TY - JOUR A1 - Blank, Andreas A1 - Zindler, Klaus T1 - Vorsicht, Auto - Lineareinheiten bewegen Fußgängerattrappen JF - mda - messtec drives Automation KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2015 VL - 23 IS - 3 SP - 28 EP - 29 PB - Wiley-VCH Verlag ER - TY - CHAP A1 - Lieb, Florian T1 - Audio Inpainting Using M-Frames T2 - Current Trends in Analysis and Its Applications N2 - Classical short-time Fourier constructions lead to a signal decomposition with a fixed time-frequency resolution. However, having signals with varying features, such time-frequency decompositions are very restrictive. A more flexible and adaptive sampling of the time-frequency plane is achieved by the nonstationary Gabor transform. Here, the resolution can evolve over time or frequency, respectively, by using different windows for the different sampling positions in the time or frequency domain (Multiwindow-frames). This adaptivity in the time-frequency plane leads to a sparser signal representation. In terms of audio inpainting, i.e., filling in blanks of a depleted audio signal, sparsity in some representation space profoundly influences the quality of the reconstructed signal. We will compare this quality using different nonstationary Gabor transforms and the regular Gabor transform with different types of audio signals. KW - Audio inpainting KW - Convex optimization KW - Nonstationary Gabor frames KW - ERBlet Transform KW - Constant-Q transform KW - Mathematik KW - Aufsatzsammlung Y1 - 2013 SN - 978-3-319-12576-3 U6 - https://doi.org/10.1007/978-3-319-12577-0_77 VL - 2015 SP - 705 EP - 713 PB - Springer International Publishing ER - TY - CHAP A1 - Lantzberg, Daniel T1 - Rank-M Frame Multipliers and Optimality Criterions for Density Operators of Rank M T2 - Current Trends in Aanalysis and Its Applications N2 - Ever since the introduction of frames in 1952 [4], the connection between frame theory and decompositions of certain operators, particularly the identity operator, into rank-ones began to be elaborated. Abandoning the idea of restricting to tight frame-like expansions, with respect to systems arising from a single template function, one is led to the concept of resolutions of the identity, with respect to more general systems than the usual rank-one expansions of the identity. In this study, we will investigate various notions of possible generalizations of optimality criterions for rank-M frames and corresponding multipliers. Explicitly, we will lay stress on continuous M-frames, arising from irreducible group representations of locally compact groups, have a look at its connection to time-frequency analysis and comment on adequate notions of optimality. KW - Frames KW - Multipliers KW - Operator Approximation KW - Locally Compact Groups KW - Uncertainty Principle KW - Mathematik KW - Aufsatzsammlung Y1 - 2013 SN - 978-3-319-12576-3 U6 - https://doi.org/10.1007/978-3-319-12577-0_76 VL - 2015 SP - 695 EP - 704 PB - Springer ER - TY - CHAP A1 - Abke, Jörg A1 - Gold, Carolin A1 - Kälberer, Nina A1 - Kuhn, Martina T1 - Collaborative Knowledge Transfer via Wiki: A Project Based Learning Approach in Software Engineering T2 - 2014 International Conference on Interactive Collaborative Learning (ICL) N2 - Due to the high complexity and numerous abstract processes in the subject Software Engineering (SWE), both, challenges in teaching and in learning arise. The teaching of Software Engineering is attempted by a new didactic approach to convey a deeper understanding of the complexity and the processes of Software Engineering in the context of the course. The approach complements the classical ex-cathedra lecture with a seminar and a project phase, whereby the direct application of theoretical knowledge is achieved in real-world situations. In addition to the consolidation of factual knowledge, transferable skills, such as presentation, communication and teamwork skills, can be encouraged. The approach focuses on self-studying as well as collaborative learning. The knowledge gained from team working is multiplied by the Wiki and spread over the whole semester. KW - Software Engineering Y1 - 2014 SN - 978-1-4799-4438-5 U6 - https://doi.org/10.1109/ICL.2014.7017785 SP - 283 EP - 288 PB - IEEE ER - TY - CHAP A1 - Abke, Jörg A1 - Gold, Carolin A1 - Kälberer, Nina A1 - Kuhn, Martina T1 - Analyses and Evaluation of Educational Data Gained from a Learning Management System T2 - European Conference Software Engineering Education (ECSEE) 2014 N2 - Software Engineering is a very complex theme including abstract processes. Thus its university education is even more challenging; in particular in the course of study in mechatronics, in which various subjects are integrated and combined. Due to our experience the students are low motivated concerning the subject "Software Engineering", because of the mixture of technical and interdisciplinary competencies, therefore the subject matter is difficult to teach. In this paper, we share some experiences, as we have tried to activate students and therefore attempt to deepen their understanding of Software Engineering and its processes. As a central tool of the seminar phase, which is used to combine active and passive learning styles, a Wiki embedded in our learning management system Moodle was introduced. KW - Software Engineering Y1 - 2014 SN - 978-3-8440-3067-9 SP - 93 EP - 107 PB - Waxmann CY - Aachen ER - TY - JOUR A1 - Hahn, Stefan A1 - Heinlein, Sven A1 - Zindler, Klaus T1 - Testing Methods for Forward-looking Safety Systems JF - ATZ worldwide KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2012 VL - 114 (2012) IS - 11 SP - 4 EP - 7 PB - Springer Automotive Media ER - TY - CHAP A1 - Zindler, Klaus A1 - Geiß, Niklas A1 - Doll, Konrad A1 - Heinlein, Sven T1 - Real-Time Ego-Motion Estimation using Lidar and a Vehicle Model Based Extended Kalman Filter T2 - Proceedings of the IEEE 17th International Conference on Intelligent Transportation Systems (ITSC 2014), Qingdao, China, October 8-11, 2014 KW - Kraftfahrzeug KW - Kalman-Filter Y1 - 2014 U6 - https://doi.org/10.1109/ITSC.2014.6957728 VL - 2014 IS - Beitrag Nr. ThA6.1 SP - 431 EP - 438 PB - IEEE ER - TY - JOUR A1 - Zindler, Klaus A1 - Blank, Andreas T1 - Fußgängerattrappen mit Lineareinheiten realistisch bewegen JF - Konstruktion - Sonderausgabe "Special Antriebstechnik" KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2014 VL - 2014 IS - S2 SP - 44 EP - 45 PB - Springer-VDI-Verlag ER - TY - CHAP A1 - Hofmann, Georg Rainer A1 - Schumacher, Meike ED - Barton, Thomas ED - Erdlenbruch, Burkhard ED - Guckert, Michael ED - Herrmann, Frank ED - Müller, Christian ED - Ritz, Harald T1 - Abschätzung der Akzeptanz von IT-Systemen mittels Methoden der Case-based Evidences und Qualifizierten Experteninterviews - ein Metathema der Integration und Konnexion T2 - Herausforderungen an die Wirtschaftsinformatik: Integration und Konnexion N2 - In diesem Beitrag wird die Methode der Case-based Evidences vorgestellt, mit deren Hilfe die Akzeptanz von Systemen abgeschätzt werden kann. KW - Integration KW - Konnexion KW - Akzeptanz KW - Informationstechnik KW - Akzeptanz Y1 - 2013 SN - 978-3-936527-36-0 VL - 2013 SP - 120 EP - 127 PB - Verlag News & Media CY - Berlin ER - TY - CHAP A1 - Hofmann, Georg Rainer A1 - Schumacher, Meike T1 - Studie zur Rezeption des GovData Datenportals des BMI - zur Diskussion der Akzeptanz des "Open Data"-Konzepts T2 - Angewandte Forschung in der Wirtschaftsinformatik - Prozesse, Technologie, Anwendungen, Systeme und Management 2014 N2 - Im Februar 2013 ist „GovData – Das Datenportal für Deutschland“, das von Fraunhofer Institut FOKUS (Berlin) im Auftrag des Bundesministeriums des Inneren (BMI) entwickelt wurde, als Beta-Version in Betrieb gegangen. Im Sommersemester 2013 untersuchte eine studentische Arbeitsgruppe am Information Management Institut (IMI) der Hochschule Aschaffenburg in Kooperation mit Fraunhofer FOKUS, die Rezeption dieses Portals. Ziel dieser Studie war es, auf Grundlage von Internetrecherchen und Experteninterviews, sowohl Kritiker und Kritikpunkte, als auch deren Adressaten zu ermitteln. Weiter wurden auf Grundlage dieser Ergebnisse Handlungsempfehlungen zur Erhöhung der Akzeptanz gegeben. KW - Electronic Government KW - GovData KW - Datenportal Y1 - 2014 SN - 978-3-936527-38-4 SP - 177 EP - 187 PB - Verlag News & Media CY - Berlin ER - TY - CHAP A1 - Jäger, Erwin A1 - Rädel, Ulrich A1 - Bischoff, Christian A1 - Umhofer, Udo A1 - Rung, Stefan A1 - Hellmann, Ralf T1 - Laser micromachining – parallel processing with multiple top hat beams T2 - 8th International Conference on Photonic Technologies LANE 2014 KW - Laserbearbeitung Y1 - 2014 ER - TY - JOUR A1 - Rung, Stefan A1 - Barth, Johannes A1 - Hellmann, Ralf T1 - Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films JF - Micromachines N2 - Thin film ablation with pulsed nanosecond lasers can benefit from the use of beam shaping optics to transform the Gaussian beam profile with a circular footprint into a Top-Hat beam profile with a rectangular footprint. In general, the quality of the transformed beam profile depends strongly on the beam alignment of the entire laser system. In particular, the adjustment of the beam shaping element is of upmost importance. For an appropriate alignment of the beam shaper, it is generally necessary to observe the intensity distribution near the focal position of the applied focusing optics. Systems with a low numerical aperture (NA) can commonly be qualified by means of laser beam profilers, such as a charge-coupled device (CCD) camera. However, laser systems for micromachining typically employ focus lenses with a high NA, which generate focal spot sizes of only several microns in diameter. This turns out to be a challenge for common beam profiling measurement systems and complicates the adjustment of the beam shaper strongly. In this contribution, we evaluate the quality of a Top-Hat beam profiling element and its alignment in the working area based on the ablated geometry of single pulse ablation of thin transparent conductive oxides. To determine the best achievable adjustment, we develop a quality index for rectangular laser ablation spots and investigate the influences of different alignment parameters, which can affect the intensity distribution of a Top-Hat laser beam profile. KW - Dünne Schicht KW - Laserablation Y1 - 2014 VL - 5 IS - 4 SP - 943 EP - 953 ER - TY - CHAP A1 - Borgeest, Kai T1 - Preisgünstige und flexible HiL-Systeme selber bauen T2 - Tagungsband Embedded Software Engineering Kongress 2014 N2 - In allen Projektphasen von der Spezifikation bis zum Test hilft die Verfügbarkeit einer simulierten Steuergeräteumgebung. Diese kann modellbasiert, softwarebasiert oder eine Hardwareumgebung sein. Bei der Hardware gibt es einfache Signalgeneratoren und Ersatzlasten als billigste Lösung. Die aufwändigste Lösung ist ein digitaler HiL-Simulator (Hardware in the Loop). Der Beitrag zeigt eine Lösung, die preislich und in der Benutzerfreundlichkeit einen Kompromiss zwischen diesen Extremen darstellt sowie aufgrund ihrer Modularität leicht anpassbar ist. KW - HiL, Hardware in the Loop KW - Hardware-in-the-loop KW - Kraftfahrzeugelektronik Y1 - 2014 VL - 2014 CY - Sindelfingen ER - TY - CHAP A1 - Abke, Jörg A1 - Schwirtlich, Vincent A1 - Sedelmaier, Yvonne ED - Forbrig, Peter ED - Rick, Detlef ED - Schmolitzky, Axel T1 - Kompetenzförderung im Software Engineering durch ein mehrstufiges Lehrkonzept im Studiengang Mechatronik T2 - HDI 2012 – Informatik für eine nachhaltige Zukunft N2 - Dieser Beitrag stellt das Lehr-Lern-Konzept zur Kompetenzförderung im Software Engineering im Studiengang Mechatronik der Hochschule Aschaffenburg dar. Dieses Konzept ist mehrstufig mit Vorlesungs-, Seminar- und Projektsequenzen. Dabei werden Herausforderungen und Verbesserungspotentiale identifiziert und dargestellt. Abschließend wird ein Überblick gegeben, wie im Rahmen eines gerade gestarteten Forschungsprojektes Lehr-Lernkonzepte weiterentwickelt werden können. KW - Software Engineering KW - Ingenieurstudium Y1 - 2012 SN - 978-3-86956-220-9 SN - 1868-0844 SP - 79 EP - 84 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - CHAP A1 - Abke, Jörg A1 - Brune, Philipp A1 - Haupt, Wolfram A1 - Hagel, Georg A1 - Landes, Dieter A1 - Mottok, Jürgen T1 - EVELIN – ein Forschungsprojekt zur systematischen Verbesserung des Lernens von Software Engineering T2 - Tagungsband Embedded Software Engineering-Kongress 2012 N2 - Software bestimmt unseren Alltag, ist aber abstrakt und physisch nicht greifbar. Wegen ihres hohen Stellenwerts ist eine gute Software-Engineering-Ausbildung von zentraler Bedeutung. Eine hohe Technologiekompetenz der Softwareentwickler ist allein kein Garant für qualitativ hochwertige Software, entscheidend sind auch Soft Skills wie Kommunikations- und Teamfähigkeit der beteiligten Ingenieure und Informatiker. Neben dem hohen Abstraktionsgrad stellen also auch weiche Faktoren die Ausbildung im Software Engineering vor große Herausforderungen. Didaktische Ansätze zur Vermittlung von Software Engineering müssen hinsichtlich beider Anforderungen systematisch weiterentwickelt werden. Die „klassische“ Ausbildung mit Elementen des Frontalunterrichts ist durch Methodenarrangements zu ergänzen, die die Prozesse des Lernens und Lehrens fokussieren. Im Forschungsprojekt EVELIN („Experimentelle Verbesserung des Lernens von Software Engineering“) arbeiten seit Anfang 2012 sechs Hochschulen an der systematischen kompetenzorientierten Weiterentwicklung der Software-Engineering- Ausbildung. Der Vortrag skizziert Ziele und den aktuellen Stand des Forschungsprojektes EVELIN. KW - Software Engineering KW - Forschungsprojekt Y1 - 2012 SP - 653 EP - 658 ER - TY - CHAP A1 - Abke, Jörg A1 - Gold, Carolin A1 - Roznawski, Nina A1 - Schwirtlich, Vincent A1 - Sedelmaier, Yvonne T1 - A New Approach to Collaborative Learning in Software Engineering Focussed on Embedded Systems T2 - 2013 International Conference on Interactive Collaborative Learning (ICL) N2 - Software Engineering is a very complex and abstract process and therefore hard to learn and hard to teach. Especially in mechatronics software engineering is not the main focus of the university studies. Therefore students have little understanding and low motivation to spend time on it. In this paper, we share some experiences on how we tried to give students a deeper understanding for software engineering, its processes and the complexity of software engineering projects. To that end, we chose a new didactical approach consisting of direct instruction and activating learning styles in parallel. The classical lectures were supplemented by a seminar and a project phase to allow students to apply their theoretical learned knowledge without delay in realistic settings. We combined active and passive learning styles to give students the opportunity to consolidate factual knowledge, foster soft skills (e.g. presentation and communication skills), improve team work and gain a deeper understanding of software engineering processes. The experiences of our courses in summer semesters 2010 and 2012 lead to a further development of our didactical approach in 2013. As a consequence, we tried further methods to spread needed information across the student working groups by using a wiki-system, a market of knowledge or mixing the groups between seminar and project phase. At the end of the seminar phase quality gates were implemented and also awards at the end of the project phase. Systematically evaluations at the end of the seminar phase and at the end of the project work show the learning outcomes and possible further improvements of our didactical approach. KW - Software Engineering KW - Kooperatives Lernen Y1 - 2013 SN - 978-1-4799-0152-4 U6 - https://doi.org/10.1109/ICL.2013.6644663 SP - 610 EP - 616 PB - IEEE ER - TY - BOOK A1 - Zindler, Klaus T1 - Nutzung der Freiheitsgrade für den Entwurf robust stabiler Regelungen bei strukturierter und unstrukturierter Modellunsicherheit KW - Mehrgrößenregelungssystem KW - Unsicherheit KW - Reglerentwurf KW - Robuste Regelung KW - Ljapunov-Stabilitätstheorie KW - Modalanalyse Y1 - 1999 SN - 3-8265-6399-9 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Zindler, Klaus T1 - Funktionsentwurf und Konzepterprobung aktiver Federungssysteme T2 - 11. Aachener Kolloquium Fahrzeug- und Motorentechnik KW - Kraftfahrzeug KW - Federung Y1 - 2002 VL - 2002 SP - 1025 EP - 1042 ER - TY - JOUR A1 - Zindler, Klaus A1 - Blank, Andreas T1 - Fahrzeugsicherheitssysteme im Test: Fußgängerattrappen realistisch mit Lineareinheiten bewegen JF - Antriebstechnik KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2014 VL - 2014 IS - 9 SP - 34 EP - 36 PB - Vereinigte Fachverlage ER -