Publication list Dominik Schott

• Conference papers

Conference papers

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2018

• Dominik Jan Schott, Muhammad Faisal, Fabian Höflinger, Leonhard M Reindl
  A Multichannel Acoustic Chirp-Spread Modulation Approach Towards Diver-to-Diver Communication
  2018 Hammamet, Tunesien 2018 15th International Multi-Conference on Systems, Signals & Devices (SSD), IEEE, pages: 475 - 479
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  Abstract

  In this work, we propose a single and multiband chirp signals for communication in the air and underwater channel. A Raspberry Pi based transceiver system and MATLAB are used for the demodulation of the chirp signals. The experiments, for both air and water, are conducted in static conditions, that is the transmitter and receiver are fixed. To increase the efficiency of signal processing, down-conversion or bandpass sampling is implemented on the receiver side. We use transmission bands between 60~kHz and 70kHz to reduce the impact of divers' communication on the maritime ecosystem and its natural communication bands. The structure of the demodulation is discussed in detail with focus on the frame detection and decision algorithm. In several different settings, we demonstrate the performance of this approach and transmit data of up to 12 Byte with data rates of 100 and 200 bit/s over 0.25 m in air and 4.5 m in water inside a highly echoic environment.
  
  
   
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2017

• Dominik Jan Schott, Muhammad Faisal, Fabian Höflinger, Leonhard M. Reindl, Joan Bordoy, Christian Schindelhauer
  Underwater localization utilizing a modified acoustic indoor tracking system
  2017 IEEE 7th International Conference on Underwater System Technology: Theory and Applications (USYS), Kuala Lumpur 2017 IEEE 7th International Conference on Underwater System Technology: Theory and Applications (USYS), pages: 1 - 5
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  Abstract

  We present a modified indoor localization system and the research into localization of divers utilizing acoustic chirp signals. The ASSIST infrastructure is used, which implements TCP/IP-based time synchronization for receiver nodes, timestamping of received chirps and server-side localization. Modifications of the original system are shown, as the transmission of signals at higher frequency and operation with high impedance transducers for the water channel. The results of position measurements in an indoor test pool as well as a small lake are shown to verify the systems functionality and investigate different multipath environments.
  
  
   
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• Dominik Jan Schott, Fabian Höflinger, Hai Yang, Rui Zhang, Leonhard M. Reindl
  Fuzzy inference system assisted inertial localization system
  2017 International Conference on Engineering, Technology and Innovation (ICE/ITMC), Funchal, Portugal 2017 International Conference on Engineering, Technology and Innovation (ICE/ITMC), pages: 89 - 93
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  Abstract

  In this paper we present a novel IMU (Inertial Measurement Unit) based indoor localization system assisted by a fuzzy inference system (FIS). The positioning is achieved by simply applying double integration to the acceleration data. And the accumulative position errors are eliminated by using FIS based acceleration restriction. In this way, the system can be used for general cases without any scenario and condition limitations. By considering smartphone as the IMU, it is also possible to realize applications such as navigation in the supermarket or guiding blind people through buildings. Indoor experiment has been carried out to verify the benefit of FIS based acceleration restriction. The experimental results show that the proposed new system is able to follow the true trajectory and achieve a tracking accuracy improvement of 84% in comparison to the one without FIS based acceleration restriction.
  
  
   
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• Ivo Häring, Johannes Scheidereiter, Stefan Ebenhöch, Dominik Jan Schott, Leonhard M. Reindl, Sven Köhler, Joan Bordoy, Christian Schindelhauer, Hermann Scheithauer, Sven Kaufmann
  Analytical engineering process to identify, assess and improve technical resilience capabilities
  2017 European Safety and Reliability Conference (ESREL 2017), Portorož, Slovenia Safety and Reliability – Theory and Applications, CRC Press, London, pages: 1069 - 1087
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  Abstract

  Reliability, risk control and more recently resilience enhancement are generally agreed to be of major interest for designing and improving technical and socio technical systems. However, for resilience enhancement of technical systems, the question arises how to achieve this aim in a systematic way. The present approach addresses the control of potentially disruptive events for an indoor logistics ultrasonic system, which can be used for locating goods or robots within storage or production halls. It is shown how to address in a systematic analytical process potentially disruptive events and how to generate scenarios for further detailed resilience analyses and evaluation. The scenarios are designed and assessed in such a way that technical requirements for increasing the resilience of the system can be derived. The paper describes the process in 8 steps: (1) system and context definition, (2) identification of system performance functions and related quantities, especially in undisturbed operation mode, (3) identification of potentially disruptive events and threats, (4) identification of critical combinations of disruptions and performance functions, e.g. using a resilience criticality matrix of combinations of performance functions and disruptions, (5) definitions of scenarios for detailed resilience assessment, (6) resilience assessment and analysis, (7) resilience evaluation, and (8) selection and implementation of design improvements. In addition, the paper exemplarily shows how such a resilience cycle informed process can be implemented and tailored for indoor logistic example.
  
  
   
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2013

• Robert Tannhäuser, Jean-Michel Boccard, Dominik Jan Schott, Leonhard M. Reindl
  Wireless Sensor Networks using Robust Antenna Packages for Infrastructure Security
  2013 8th Future Security 2013. Security Research Conference, Berlin, Germany Security Research Conference "Future Security", Fraunhofer Verlag, pages: 368 - 374
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  Abstract

  A robust, high efficiency slot antenna integrated in the sensor packaging for a wake-up receiver working at 868 MHz is presented. The wake-up approach as well as a novel wireless sensor node architecture based on the ARM Cortex M3 is discussed. With the low power wake-up transceiver strategy the average sleep current could be reduced to only 3.0 uA. Resulting in a battery lifetime of 7 years with a BR2032 battery. Simulation and measurement data will be presented. In fiel-test more than 60 meter wake-up range could be demonstrated.
  
  
   
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