Oliver Michler

• TUD Dresden University of Technology

Digitization and networking have rapidly advanced across society and the economy, necessitating an increase in students’ acquisition of theoretical and technical skills. Information and communication technology systems and technologies, along with their applications, have fundamentally changed in recent decades. Consequently, engineering didactics...

In the context of the education of engineers, it has always been a special challenge to convey the balancing act between necessary theory and result-oriented and structured or practically relevant working methods. The field of traffic engineering forms a special role in the context of education. The range of possible disciplines is very wide, which...

Radio sensing is a rapidly emerging research field. It focuses on designing an integrated communication system that can also perform localization and radar functionalities sharing the same transmit signals and potentially the same hardware. Ultra-wideband (UWB) impulse radio is a promising technology for radio sensing because it offers a high-range...

Precise and especially reliable global localization is an important task in the field of autonomous driving. RTK-GNSS systems provide an accurate solution to this task but unfortunately lack reliability in urban scenarios. 3D-LiDAR based methods can be an attractive alternative under these circumstances but generally do not provide a global referen...

Effiziente und prognostizierbare Abfertigungszeiten sind zentrale Merkmale des modernen Flugverkehrs und der Schlüssel zu dessen Zukunftsfähigkeit. Im Kontext der vernetzten Flugzeugkabine ermöglicht der Einsatz von vernetzten Sensoren und Endgeräten eine umfassende Zustandserkennung sowie die Bereitstellung digitaler Services. Dabei weisen breitba...

The application of radio-based positioning systems is ever increasing. In light of the dissemination of the Internet of Things and location-aware communication systems, the demands on localization architectures and amount of possible use cases steadily increases. While traditional radio-based localization is performed by utilizing stationary nodes,...

This demo addressed the need for immersive and digitized evaluation of future integrated and joint communication systems within the scope of multimodal Intelligent Transportation Systems (ITS). We present a model-based, deterministic ray-tracing simulation tool aiming to enable adaptable, technology-and hardware-independent as well as scenario-spec...

In der Flugzeugkabine müssen sich die Passagiere während des Einsteigens, des Flugs und des Aussteigens eine enge Umgebung mit anderen Passagieren teilen, was ein Risiko für die Übertragung von Viren darstellt und angemessene Strategien zur Risikominderung erfordert. Abstände zwischen den Passagieren während des Ein- und Aussteigens verringern das...

With the digitalization of transportation new use cases for digital information services are emerging. For example, prioritization of road users at traffic signals, especially emergency vehicles, is a desired goal. Requirements for the necessary communication link between road user and C-ITS station are often inadequately met. In particular, increa...

Efficiency and reliable turnaround time are core features of modern aircraft transportation and key to its future sustainability. Given the connected aircraft cabin, the deployment of digitized and interconnected sensors, devices and passengers provides comprehensive state detection within the cabin. More specifically, passenger localization and oc...

ICL2021 was the 24th edition of the International Conference on Interactive Collaborative Learning and the 50th edition of the IGIP International Conference on Engineering Pedagogy. This interdisciplinary conference aims to focus on the exchange of relevant trends and research results as well as the presentation of practical experiences in Interact...

Intelligent infrastructure, currently often consisting of C-ITS stations and prospectively supplemented by 5G, is a key-enabler for application-oriented and area-wide realization of highly automated and connected driving. For this, radio coverage along the routes must be ensured, leading to high demands on location- and radio-specific planning and...

ICL2021 was the 24th edition of the International Conference on Interactive Collaborative Learning and the 50th edition of the IGIP International Conference on Engineering Pedagogy. This interdisciplinary conference aims to focus on the exchange of relevant trends and research results as well as the presentation of practical experiences in Interact...

In this paper, the necessity for application-oriented development and evaluation of Joint Communication and Sensing (JC&S) applications, especially in transportation, is addressed. More specifically, an integrative evaluation chain for immersively testing JC&S location capabilities, reaching from early-stage testing, over model- and scenario-enable...

Joint, radio-based communication, localization and sensing is a rapidly emerging research field with various application potentials. Greatly benefiting from these capabilities, smart city, mobility, and logistic concepts are key components for maximizing the efficiency of modern transportation systems. In urban environments, both the search for par...

For current and future automated driving functions, the radio availability of broadband hybrid networking services (e.g. digital broadcasting, mobile radio, dedicated short range communication) is a prerequisite for continuous V2X information exchange. The supply focus for this is explicitly the road route with its lanes. The application of antenna...

For current and future automated driving functions, the radio availability of broadband hybrid networking services (e.g. digital broadcasting, mobile radio, dedicated short range communication) is a prerequisite for continuous V2X information exchange. The supply focus for this is explicitly the road route with its lanes. The application of antenna...

Wireless positioning systems are a key enabler for a variety of applications. In indoor environments, Global Navigation Satellite Systems are not available, hence technological alternatives are required. Ultra-Wide Band (UWB) radios provide high-precision distance measurements, however are still prone to ranging errors due to the environment. For l...

Ultra-Wide Band (UWB) radios provide high-precision distance measurements, however are still prone to ranging errors due to the environment. For localization system design and testing, this leads to cost-intense field trials in which localization methods are validated. As an alternative, publicly available UWB datasets exist, which however are also...

Ultra-Wide Band (UWB) radios provide high-precision distance measurements, however are still prone to ranging errors due to the environment. For localization system design and testing, this leads to cost-intense field trials in which localization methods are validated. As an alternative, publicly available UWB datasets exist, which however are also...

The interconnection of devices, driven by the Internet of Things (IoT), enables a broad variety of smart applications and location-based services. The latter is often realized via transponder based approaches, which actively determine device positions within Wireless Sensor Networks (WSN). In addition, interpreting wireless signal measurements also...

In this paper, the problem of positioning a tag/receiver using range measurements is addressed. The performance of two linear least-squares estimators in terms of positioning accuracy is considered. To further improve the accuracy, we propose two measures in order to remove measurement noise and outliers, and to reduce measurement bias errors. Nois...

To appear in proceedings of ENC 2020: High-precision user position estimation is a necessary prerequisite for various safety-critical applications and location based services in navigation. For vehicular applications, low-cost GNSS receivers are often utilized as they provide a reasonable trade-off between affordability and accuracy. Especially in...

With the rise of COVID-19, the sustainability of air transport is a major challenge, as there is limited space in aircraft cabins, resulting in a higher risk of virus transmission. In order to detect possible chains of infection, technology-supported apps are used for social distancing. These COVID-19 applications are based on the display of the re...

Device-Free Passive Localization (DFPL) is capable of detecting and locating an object without requiring the object to hold any device, nor to participate actively in the localization process. This system is based on wireless sensor networks (WSN) and analyzes the reflections of wireless signals from the object. A method to localize an object based...

Highly precise localization is a necessary precondition for safety-critical applications and location-based services in land navigation. Low-cost GNSS receivers are often used in a vehicular context as they provide a reasonable tradeoff between affordability and accuracy. Especially in dense urban environments shadowing or Non-Line-of-Sight (NLOS)...

The mastery of the theoretical and applied basics and their deepening are indispensable for engineering students. Over the last decades, many technical systems have changed in a revolutionary way, mostly from simplicity to complexity. This technological change shapes the engineering didactics in terms of contents and goals as well as methodology in...

High-precision and lane selective position estimation is of fundamental importance for prospective advanced driver assistance systems (ADAS) and automated driving functions, as well as for traffic information and management processes in intelligent transportation systems (ITS). User and vehicle positioning is usually based on Global Navigation Sate...

Railway operation is based on various safety critical control and signalling operations which are conventionally realized by stationary infrastructure. Acquisition, maintenance and operation of these components are generally very cost-intense and compromise the future of railways lines with low traffic volumes. These so called secondary railway lin...

Future applications for connected and automated driving depend on high-precision, lane selective positioning especially in dense urban environments. Estimating a user’s position is often based on Global Navigation Satellite Systems (GNSS), but stand-alone GNSS positioning methods do not meet the necessary performance requirements. To achieve higher...

In order to design an efficient freight rolling stock operation, information of the vehicle and load must be available for transport companies, customers, maintainers and network operators. The basis for such an intelligent freight wagon besides the telematics for geolocation and communication (satellite navigation, inertial and mobile radio system...

The automotive industry is changing from conventional driving into connected and later on autonomous driving. The fundamental principle of this alteration is communication and exchange of data between vehicles and other kind of traffic objects, for example traffic lights. The knowing about basic conditions from all traffic objects within a close pr...

Civil aviation is considering the use of wireless transmission technology for safety-related on-board machine-to-machine communications. The crucial factor is the availability of a globally harmonized radio frequency band with predictable characteristics in terms of signal propagation and interference induced by other users of that frequency band....

Inertial signals, that is to say accelerations, vibrations and rotations, are gaining more and more importance in navigation applications as they may contribute to motion state estimation. Such motion states may also assist navigation processes in finding a stable navigation solution. Prior to the market introduction of such navigation applications...

One of the important aspects in wireless sensor networks is an energy efficient communication protocol to allow battery powered devices with a lifetime of several of years. The most important step therefor is to maximize the time the network nodes staying in power down modes. The possibility to measure distances with an easy-to-use and low cost pha...

This paper presents a novel approach for an adaptive Extended Kalman Filter (EKF), which is able to handle bad signal quality caused by shading or loss of Doppler Effect for low cost Global Navigation Satellite System (GNSS) receiver and Inertial Measurement Unit (IMU) sensors fused in a loosely coupled way. It uses the estimated position error as...

The use of Global Navigation Satellite Systems (GNSS) in maritime applications has been widely recognized as an essential part of maritime navigation. This is due to good reception conditions on open water and due to the low accuracy requirements when navigating on the open sea. When it comes to inland waterways, GNSS is an important tool for the m...

In this work we use wireless sensor networks (WSNs) to estimate positions for automated passenger registration with the purpose of an electronic ticketing application in public transport systems. The network is capable of measuring distances between the network's sensor nodes by phase-of-arrival (POA) ranging. In our application, the requirements r...

An overview about the German cluster project Cool Silicon aiming at increasing the energy efficiency for semiconductors, communications, sensors and software is presented. Examples for achievements are: 1000 times reduced gate leakage in transistors using high-k (HKMG) materials compared to conventional poly-gate (SiON) devices at the same technolo...

Localization techniques based on wireless sensor networks (WSNs) are an increasingly popular approach for estimating object positions in a wide area of applications. Nevertheless, accuracy and reliability of the WSN position estimates need to be increased for some applications, e.g. automated people registration in public transport vehicles. This g...

The constantly growing amount of vehicles in urban areas leads to a more saturated condition at signalized intersections. Microscopic traffic flow optimization offers a probate solution to reducing queue length and traveltime, thus increasing overall traffic flow. Gathering sufficient input data for the optimization process is dependent on the avai...

In recent years, indoor positioning has become more and more important for industrial and commercial usage. Advanced approaches using leaky coaxial cables (LCX) not only for radio coverage have been developed. This paper deals with the application of LCXs for indoor localization in a public transport test scenario, run by the Fraunhofer Institute f...

We consider localization techniques based on wireless sensor networks (WSN), which are a promising technology to achieve highly accurate positioning solutions. Hence, this paper provides an overview of the concept of localization in modern railway applications, e.g. locating trains in storage sidings. Different geometrical scenarios are analyzed by...

The phase tracking error caused by multipath propagation remains one of the largest problems in high precision applications. Therefore methods for multipath error estimation and mitigation are requested. One approach is the determination of the multipath signal parameters, amplitudes and phases, out of SNR time series. By means of these values, the...

Frequent necessary stops at red traffic signals and related braking and acceleration processes significantly affect the fuel consumption and emission rates of a vehicle. The efficiency-increasing potential (fuel saving potential) of a predictive driver assistance system proposing an intelligent vehicle speed adaption well in advance the intersectio...

Phase measurement based time-of-flight ranging techniques are a valid approach for radio-frequency distance measurements using a small relative bandwidth. Step-frequency radar enhances this approach for application on multiple frequencies. In case of presence of narrowband interference, distance calculations are possibly affected depending on the n...

We consider problems of wireless sensor network (WSN) - based localisation as a promising technology for highly accurate positioning solutions. Hence, this paper provides an overview on the results of synthetic data testing of an iterative positioning approach. Position estimation in WSNs is based on distance measuring by means of time-of-flight (T...

We present a conceptual abstraction layer dedicated to unify the interface to hardware devices capable of performing ranging as well as dedicated to evaluate the positioning algorithms working on top. The proposed device and positioning algorithm evaluation tool POSE is implemented in Java programming language. It offers a complete measurement and...

This paper provides an overview about the results of indoor and outdoor ranging measurements by radio based position estimation in the 2.4 GHz-band. A commercial wide band location system represents the basis therefore. Position estimation is based on distance measurements by means of a time of arrival (TOA) ranging method. The linear least square...

The radio communication network “Intermobil Region Dresden" was developed and built up for data transmission of traffic videos and other traffic data. It uses Pointto- Point (PtP) and Point-to-Multipoint (PtM) bridges, forming the backbone structure. The traffic camera radio clients link up with Accesspoints, installed at the nodal points of the ba...

Die vorliegende Studie untersucht die Existenz der sogenannten "Kinderstrafsteuern" für die Bundesrepublik Deutschland für die Jahre 1990 bis 2002 und quantifiziert das damit verbundene Ausmaß der finanziellen Belastung von Familien mit Kindern gegenüber Kinderlosen. - Nach Darstellung der allgemeinen steuerlichen Regelungen und Berechnung der Kind...

Zugl.: Dresden, Techn. Universiẗat, Diss., 1999.