Dr. Michael Strohmeier

• Thrust Vector Observation for Force Feedback-Controlled {UAVs} Werner, Lennart; Strohmeier, Michael; Rothe, Julian; Montenegro, Sergio in Drones (2022). 6(2) 49.
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  @article{Werner_2022, author = {Werner, Lennart and Strohmeier, Michael and Rothe, Julian and Montenegro, Sergio}, journal = {Drones}, keywords = {myown}, month = {feb}, number = 2, pages = 49, publisher = {{MDPI} {AG}}, title = {Thrust Vector Observation for Force Feedback-Controlled {UAVs}}, volume = 6, year = 2022 }

• FARN - A Novel UAV Flight Controller for Highly Accurate and Reliable Navigation Strohmeier, Michael PhD thesis, Universit{\"a}t W{\"u}rzburg. (2021).
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  @phdthesis{Strohmeier2021, author = {Strohmeier, Michael}, keywords = {myown}, school = {Universit{\"a}t W{\"u}rzburg}, title = {FARN - A Novel UAV Flight Controller for Highly Accurate and Reliable Navigation}, type = {doctoralthesis}, year = 2021 }

• {Towards Self-Aware Multirotor Formations} Kaiser, Dennis; Lesch, Veronika; Rothe, Julian; Strohmeier, Michael; Spiess, Florian; Krupitzer, Christian; Montenegro, Sergio; Kounev, Samuel in Computers (2020). 9(7)
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  @article{Kaiser2020Towards, author = {Kaiser, Dennis and Lesch, Veronika and Rothe, Julian and Strohmeier, Michael and Spiess, Florian and Krupitzer, Christian and Montenegro, Sergio and Kounev, Samuel}, journal = {Computers}, keywords = {myown}, month = {Februar}, note = {Special Issue on Self-Aware Computing}, number = 7, publisher = {MDPI}, title = {{Towards Self-Aware Multirotor Formations}}, volume = 9, year = 2020 }
• A Modified Model Reference Adaptive Controller (M-MRAC) Using an Updated MIT-Rule for the Altitude of a UAV Rothe, Julian; Zevering, Jasper; Strohmeier, Michael; Montenegro, Sergio in Electronics (2020). 9(7)
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  @article{Rothe2020Modified, abstract = {Unmanned Aerial Vehicles (UAVs) are playing an increasingly important role in a wide variety of areas and the range of applications increases daily, which can also be seen in the research of the topic. At the University of Wuerzburg drones are to be used in a project, where the aim is to catch possibly dangerous UAVs in mid air using a net, carried by two drones. This very special scenario poses new problems to the control of the drones, so that traditionally used Proportional-Integral-Differential (PID) controllers are no longer sufficient. Therefore a model-based adaption mechanism was chosen to be used to control the altitude of the drones. Though adaption based controllers have been used in the field of drone research before, the existing algorithms had to be modified to work with the special conditions of the altitude control of UAVs. The design and implementation of the modified Model Reference Adaptive Controllers (MRACs) with an updated Massachusetts Institute of Technology (MIT)-rule will be presented in this work. The behavior of the drones with and without the adaption as well as the changes to the original MRAC are then compared in simulation as well as on a real system and show very promising results in further improving the stability of the altitude control of the drones.}, author = {Rothe, Julian and Zevering, Jasper and Strohmeier, Michael and Montenegro, Sergio}, journal = {Electronics}, keywords = {myown}, number = 7, title = {A Modified Model Reference Adaptive Controller (M-MRAC) Using an Updated MIT-Rule for the Altitude of a UAV}, volume = 9, year = 2020 }

• A concept for catching drones with a net carried by cooperative UAVs. Rothe, Julian; Strohmeier, Michael; Montenegro, Sergio in SSRR (2019). 126–132.
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  @inproceedings{Rothe2019Concept, author = {Rothe, Julian and Strohmeier, Michael and Montenegro, Sergio}, booktitle = {SSRR}, crossref = {conf/ssrr/2019}, keywords = {myown}, pages = {126-132}, publisher = {IEEE}, title = {A concept for catching drones with a net carried by cooperative UAVs.}, year = 2019 }

• Ultra-Wideband Based Pose Estimation for Small Unmanned Aerial Vehicles Strohmeier, Michael; Walter, Thomas; Rothe, Julian; Montenegro, Sergio in IEEE Access (2018). 6 57526–57535.
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  @article{Strohmeier2018UWB, author = {Strohmeier, Michael and Walter, Thomas and Rothe, Julian and Montenegro, Sergio}, journal = {IEEE Access}, keywords = {myown}, pages = {57526-57535}, title = {Ultra-Wideband Based Pose Estimation for Small Unmanned Aerial Vehicles}, volume = 6, year = 2018 }

• Coupled GPS/MEMS IMU Attitude Determination of Small UAVs with COTS Strohmeier, Michael; Montenegro, Sergio in Electronics (2017). 6(1)
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  @article{Strohmeier2017Coupled, abstract = {This paper proposes an attitude determination system for small Unmanned Aerial Vehicles (UAV) with a weight limit of 5 kg and a small footprint of 0.5m x 0.5 m. The system is realized by coupling single-frequency Global Positioning System (GPS) code and carrier-phase measurements with the data acquired from a Micro-Electro-Mechanical System (MEMS) Inertial Measurement Unit (IMU) using consumer-grade Components-Off-The-Shelf (COTS) only. The sensor fusion is accomplished using two Extended Kalman Filters (EKF) that are coupled by exchanging information about the currently estimated baseline. With a baseline of 48 cm, the static heading accuracy of the proposed system is comparable to the one of a commercial single-frequency GPS heading system with an accuracy of approximately 0.25°/m. Flight testing shows that the proposed system is able to obtain a reliable and stable GPS heading estimation without an aiding magnetometer.}, author = {Strohmeier, Michael and Montenegro, Sergio}, journal = {Electronics}, keywords = {myown}, number = 1, title = {Coupled GPS/MEMS IMU Attitude Determination of Small UAVs with COTS}, volume = 6, year = 2017 }

• Development and Evaluation of a Human-Robot Interface for an Autonomous All-Terrain Transportation Vehicle in order to Localize, Track and Follow a Human. Strohmeier, Michael (2014). 93.
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  @mastersthesis{Strohmeier2014MA, abstract = {Full solutions for automatic transportation vehicles in unstructured environmentsare restricted to military applications, although possible mission scenarios exist forcivil and space applications. In this thesis, a user-friendly, human-robot interfaceis implemented for an all-terrain electric vehicle. The interface allows the vehicleto follow a moving user autonomously by combining 3D LIDAR measurements withintensity images. The method detects clusters within the LIDAR scan that matchthe human appearance and resolves potential ambiguities based on image trackingresults. The interface can be controlled using different input devices. A detailedevaluation compares the input devices, analyzes the implemented algorithms, andvalidates the overall system behavior outdoor under real-world conditions. Thedeveloped system is able to follow its user as long as he is completely visible.}, author = {Strohmeier, Michael}, keywords = {myown}, pages = 93, title = {Development and Evaluation of a Human-Robot Interface for an Autonomous All-Terrain Transportation Vehicle in order to Localize, Track and Follow a Human.}, year = 2014 }

• Waypoint flight parameter comparison of an autonomous UAV Gageik, Nils; Strohmeier, Michael; Montenegro, Sergio in International Journal of Artificial Intelligence \& Applications (IJAIA) (2013).
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  @article{GageikStrohmeierMontenegro2013, author = {Gageik, Nils and Strohmeier, Michael and Montenegro, Sergio}, journal = {International Journal of Artificial Intelligence \& Applications (IJAIA)}, keywords = {myown}, title = {Waypoint flight parameter comparison of an autonomous UAV}, year = 2013 }
• An Autonomous UAV with an Optical Flow Sensor for Positioning and Navigation Gageik, Nils; Strohmeier, Michael; Montenegro, Sergio in International Journal of Advanced Robotic Systems (2013). 10(10) 341.
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  @article{Gageik2013Autonomous, abstract = {A procedure to control all six DOF (degrees of freedom) of a UAV (unmanned aerial vehicle) without an external reference system and to enable fully autonomous flight is presented here. For 2D positioning the principle of optical flow is used. Together with the output of height estimation, fusing ultrasonic, infrared and inertial and pressure sensor data, the 3D position of the UAV can be computed, controlled and steered. All data processing is done on the UAV. An external computer with a pathway planning interface is for commanding purposes only. The presented system is part of the AQopterI8 project, which aims to develop an autonomous flying quadrocopter for indoor application. The focus of this paper is 2D positioning using an optical flow sensor. As a result of the performed evaluation, it can be concluded that for position hold, the standard deviation of the position error is 10cm and after landing the position error is about 30cm.}, author = {Gageik, Nils and Strohmeier, Michael and Montenegro, Sergio}, journal = {International Journal of Advanced Robotic Systems}, keywords = {myown}, number = 10, pages = 341, title = {An Autonomous UAV with an Optical Flow Sensor for Positioning and Navigation}, volume = 10, year = 2013 }