Research

Most recent projetcs

All Projects…

Most recent awards

  • R. Weigel, 2020 IEEE Microwave Career Award, IEEE Microwave Theory and Techniques Society (MTT-S), 2020. [Bibtex]
    @prize{weigel_prize_2020,
    author = {Weigel, Robert},
    booktitle = {IEEE Microwave Theory and Techniques Society (MTT-S)},
    cris = {weigel_prize_2020},
    year = {2020},
    month = {06},
    day = {24},
    title = {2020 IEEE Microwave Career Award},
    type = {20773-Kleiner Preis},
    }
  • M. Frank, Förderung einer Kongressreise (RWS2020), Deutscher Akademischer Austauschdienst, 2020. [Bibtex]
    @prize{frank_prize_2020,
    author = {Frank, Martin},
    booktitle = {Deutscher Akademischer Austauschdienst},
    cris = {frank_prize_2020},
    year = {2020},
    month = {01},
    day = {28},
    title = {Förderung einer Kongressreise (RWS2020)},
    type = {20773-Kleiner Preis},
    }
  • F. Michler, Förderung einer Kongressreise (WiSNet 2020), Deutscher Akademischer Austauschdienst, 2020. [Bibtex]
    @prize{michler_prize_2020,
    author = {Michler, Fabian},
    booktitle = {Deutscher Akademischer Austauschdienst},
    cris = {michler_prize_2020},
    year = {2020},
    title = {Förderung einer Kongressreise (WiSNet 2020)},
    type = {20773-Kleiner Preis},
    }
  • M. Gardill, 3. Platz Lehrevaluation SS2019 Vorlesung Drahtlose Automobilelektronik, Technische Fakultät der FAU, 2019. [Bibtex]
    @prize{gardill_prize_2019,
    author = {Gardill, Markus},
    booktitle = {Technische Fakultät der FAU},
    cris = {gardill_prize_2019},
    year = {2019},
    month = {11},
    day = {21},
    title = {3. Platz Lehrevaluation SS2019 Vorlesung Drahtlose Automobilelektronik},
    type = {20773-Kleiner Preis},
    }
  • A. Hagelauer and A. Tag, Preis der ITG, Informationstechnische Gesellschaft im VDE (ITG), 2019. [Bibtex]
    @prize{hagelauer_prize_2019,
    abstract = {Preis der ITG 2019 für die Publikation "Microwave Acoustic Wave Devices: Recent Advances on Architectures, Modeling, Materials, and Packaging"
    }, author = {Hagelauer, Amelie and Tag, Andreas}, booktitle = {Informationstechnische Gesellschaft im VDE (ITG)}, cris = {hagelauer_prize_2019}, year = {2019}, month = {11}, day = {25}, title = {Preis der ITG}, type = {20773-Kleiner Preis}, }

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All Awards...

Most recent publications

  • T. Reißland, M. Kuba, J. Robert, A. Koelpin, R. Weigel, and F. Lurz, "Synchronization Approaches and Improvements for a Low-Complexity Power Line Communication Algorithm" in 2019 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids, Peking, China, 2020 (to be published). [Bibtex]
    @inproceedings{reissland2019b,
    abstract = {This paper presents several improvements of the energy-pattern based sequence detection (EPSD) algorithm for FSK-based single-phase power line communication (PLC) systems, in terms of complexity, reliability and synchronization. A time synchronization is presented which fulfills the well known task of synchronizing transmitter and receiver, but also helps to avoid transmissions in periods of rough noise conditions. The synchronization method is based on a maximum-likelihood approach that makes use of the phase of the mains voltage. Further improvements concern the codes used for the transmitted sequences as well as the combination of the information within both FSK carrier-frequencies in terms of equal gain and maximum ratio combining. Additionally an approach for a lowcomplexity frame synchronization is presented.
    }, author = {Reißland, Torsten and Kuba, Matthias and Robert, Jörg and Koelpin, Alexander and Weigel, Robert and Lurz, Fabian}, language = {English}, booktitle = {2019 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids}, cris = {https://cris.fau.de/converis/publicweb/publication/200235171}, year = {2020}, month = {10}, day = {21}, eventdate = {2019-10-21/2019-10-24}, faupublication = {yes}, note = {unpublished}, peerreviewed = {unknown}, title = {Synchronization Approaches and Improvements for a Low-Complexity Power Line Communication Algorithm}, type = {Konferenzschrift}, venue = {Peking, China}, }
  • S. Schellenberger, K. Shi, J. P. Wiedemann, F. Lurz, R. Weigel, and A. Koelpin, "An Ensemble LSTM Architecture for Clinical Sepsis Detection" in International Conference in Computing in Cardiology 2019, Singapur, 2020 (to be published). [Bibtex]
    @inproceedings{schellenberger2020,
    author = {Schellenberger, Sven and Shi, Kilin and Wiedemann, Jan Philipp and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    booktitle = {International Conference in Computing in Cardiology 2019},
    cris = {https://cris.fau.de/converis/publicweb/publication/229466673},
    year = {2020},
    month = {09},
    day = {08},
    eventdate = {2019-09-08/2019-09-11},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {An Ensemble LSTM Architecture for Clinical Sepsis Detection},
    type = {Journal Article},
    venue = {Singapur},
    }
  • F. Michler, S. Schönhärl, S. Schellenberger, K. Shi, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, "An Automatic Gain and Offset Control Circuit for DC-Coupled Continuous-Wave Radar Systems" in International Microwave Symposium (IMS), Los Angeles, USA, 2020 (to be published). [Bibtex]
    @inproceedings{michler2020b,
    author = {Michler, Fabian and Schönhärl, Stefan and Schellenberger, Sven and Shi, Kilin and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    booktitle = {International Microwave Symposium (IMS)},
    cris = {https://cris.fau.de/converis/publicweb/publication/234059174},
    year = {2020},
    month = {06},
    day = {21},
    eventdate = {2020-06-21/2020-06-26},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {An Automatic Gain and Offset Control Circuit for DC-Coupled Continuous-Wave Radar Systems},
    venue = {Los Angeles, USA},
    }
  • M. Völkel, S. Pechmann, H. Jalli Ng, D. Kissinger, R. Weigel, and A. Hagelauer, "An Integrated Bistatic 4TX/4RX Six-Port MIMO-Transceiver at 60 GHz in a 130-nm SiGe BiCMOS Technology for Radar Applications" in International Microwave Symposium, Los Angeles, USA, 2020 (to be published). [Bibtex]
    @inproceedings{voelkel2020,
    abstract = {In this paper, a scalable, fully digital adjustable,
    bistatic 60 GHz MIMO six-port transceiver is presented. The
    circuit features four independent transmitters and four six-port
    receivers on a single chip. The reference clock frequency of
    15 GHz is buffered and multiplied up to 60 GHz. The reference
    clock is also amplified and feed to an output port of the
    chip to render possible cascading multiple chips for massive
    MIMO applications. The receivers each include a VGA to set
    the reference power level, a LNA for amplification of the weak
    antenna signal and the six-port structure with three broadside
    linecoupler, a wilkinson-divider and four power detectors. The
    transmitters each include a switched-line phase shifter and a
    power amplifier. The whole circuit also contains an IQ-modulator
    which offers the opportunity for communication or correlation
    radar in future work. All settings for these components are
    adjusted by a 20 bit serial interface (6 bit address, 14 bit data).
    It is realized in 0.13μm CMOS logic and consists of a shift
    register, decoder and and an analog interface. The chip has a
    size of 4mm x 3.1mm and a power consumption of 960mW
    from a 3.3V power supply. A minimum input power of -22dBm
    is needed at the input clock. The transmitters deliver a maximum
    output power of 9.1dBm at 60 GHz. The phase is adjustable in
    a range from 0 to 325.4. The successful measurement results
    indicate, that the MIMO six-port transceiver is well suited for
    radar applications.
    }, author = {Völkel, Matthias and Pechmann, Stefan and Jalli Ng, Herman and Kissinger, Dietmar and Weigel, Robert and Hagelauer, Amelie}, language = {English}, booktitle = {International Microwave Symposium}, cris = {https://cris.fau.de/converis/publicweb/publication/234017322}, year = {2020}, month = {06}, day = {24}, eventdate = {2020-06-21/2020-06-26}, faupublication = {yes}, keywords = {bistatic,digital adjustable,industrial radar,integrated transceiver; interferometric radar; millimeter wave circuits; Multiple-Input Multiple-Output (MIMO); MMIC; SiGe BiCMOS; scalable; six-port}, note = {unpublished}, peerreviewed = {automatic}, title = {An Integrated Bistatic 4TX/4RX Six-Port MIMO-Transceiver at 60 GHz in a 130-nm SiGe BiCMOS Technology for Radar Applications}, type = {Konferenzschrift}, venue = {Los Angeles, USA}, }
  • S. Zeising, J. Kirchner, H. Fazeli Khalili, D. Ahmed, M. Lübke, A. Thalmayer, and G. Fischer, "Towards Realisation of a Non-Invasive Blood Glucose Sensor Using Microstripline" in International Instrumentation and Measurement Technology Conference (I2MTC), Dubrovnik, Croatia, 2020 (to be published). [Bibtex]
    @inproceedings{zeising2020,
    author = {Zeising, Samuel and Kirchner, Jens and Fazeli Khalili, Hossein and Ahmed, Doaa and Lübke, Maximilian and Thalmayer, Angelika and Fischer, Georg},
    language = {English},
    booktitle = {International Instrumentation and Measurement Technology Conference (I2MTC)},
    cris = {https://cris.fau.de/converis/publicweb/publication/234417549},
    year = {2020},
    month = {05},
    day = {25},
    eventdate = {2020-05-25/2020-05-28},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {unknown},
    title = {Towards Realisation of a Non-Invasive Blood Glucose Sensor Using Microstripline},
    type = {Konferenzschrift},
    venue = {Dubrovnik, Croatia},
    }
  • E. Aguilar Mendoza, V. Issakov, and R. Weigel, "A 130 GHz Fully-Integrated Fundamental-Frequency D-Band Transmitter Module with > 4 dBm Single-Ended Output Power" in 2020 International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain, 2020. [Bibtex]
    @inproceedings{aguilar2020a,
    abstract = {A 130 GHz fully integrated fundamental frequency transmitter (TX) module with 4.4 dBm single-ended measured output power in a 130 nm SiGe technology is presented. The transmitter achieves in measurement a phase noise of -88 dBc/Hz at 1 MHz offset frequency from a 130 GHz carrier and a tuning range of 17 GHz. Its relatively compact size, low power consumption and high output power, enables the TX module to
    be integrated into more complex D-Band transceiver modules for radar and imaging applications. Due to the available measurement equipment, it was only possible to measure the output power single-ended. The measured single-ended output power is 4.4 dBm. This corresponds well to a simulated differential output
    power of 8.1 dBm.Based on simulation results, the TX module can produce a maximum output power of 8.1 dBm. To the best of the author’s knowledge, the presented chip exhibits the highest output power fundamental frequency TX module among the recently reported state-of-the art chips in this frequency range.  
    }, author = {Aguilar Mendoza, Erick and Issakov, Vadim and Weigel, Robert}, language = {English}, booktitle = {2020 International Symposium on Circuits and Systems (ISCAS)}, cris = {https://cris.fau.de/converis/publicweb/publication/233326931}, year = {2020}, month = {05}, day = {17}, eventdate = {2020-05-17/2020-05-21}, faupublication = {yes}, peerreviewed = {unknown}, title = {A 130 GHz Fully-Integrated Fundamental-Frequency D-Band Transmitter Module with > 4 dBm Single-Ended Output Power}, type = {Konferenzschrift}, venue = {Sevilla, Spain}, }
  • M. Gardill, J. Schwendner, and J. Fuchs, "An Approach to Over-the-air Synchronization of Commercial Chirp-Sequence Automotive Radar Sensors" in 2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT), San Antonio, Texas, USA, 2020, pp. 1-4. [Bibtex]
    @inproceedings{gardill2020,
    abstract = {An approach to wireless synchronization between two commercial 77GHz automotive FMCW radar sensors is shown. Our focus is the alignment of a passive listening sensor to a second active transmitting sensor in frequency, time, and waveform modulation parameters, just by observing the signals transmitted from the active sensor. We show that using a combination of inter- and intra-chirpsequence synchronization, the active sensor’s signal can be successfully de-ramped for fast-chirp-sequence waveforms with 275MHz of bandwidth. In addition, we discuss timing requirements and challenges, and characterize the remaining synchronization errors by an analysis of the IF signal data matrix of the de-ramped waveform.},
    author = {Gardill, Markus and Schwendner, Johannes and Fuchs, Jonas},
    language = {English},
    booktitle = {2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT)},
    cris = {https://cris.fau.de/converis/publicweb/publication/229092398},
    year = {2020},
    month = {05},
    day = {26},
    eventdate = {2020-01-26/2020-01-29},
    faupublication = {yes},
    pages = {1--4},
    peerreviewed = {unknown},
    title = {An Approach to Over-the-air Synchronization of Commercial Chirp-Sequence Automotive Radar Sensors},
    type = {Konferenzschrift},
    venue = {San Antonio, Texas, USA},
    }
  • S. Ripperger, G. Carter, R. Page, N. Duda, A. Koelpin, R. Weigel, M. Hartmann, T. Nowak, J. Thielecke, M. Schadhauser, J. Robert, S. Herbst, K. Meyer-Wegener, P. Wägemann, W. Schröder-Preikschat, B. Cassens, R. Kapitza, F. Dressler, and F. Mayer, "Thinking small: next-generation sensor networks close the size gap in vertebrate biologging", Plos Biology, 2020. [Bibtex]
    @article{ripperger2020,
    author = {Ripperger, Simon and Carter, Gerald and Page, Rachel and Duda, Niklas and Koelpin, Alexander and Weigel, Robert and Hartmann, Markus and Nowak, Thorsten and Thielecke, Jörn and Schadhauser, Michael and Robert, Jörg and Herbst, Sebastian and Meyer-Wegener, Klaus and Wägemann, Peter and Schröder-Preikschat, Wolfgang and Cassens, Björn and Kapitza, Ruediger and Dressler, Falko and Mayer, Frieder},
    cris = {https://cris.fau.de/converis/publicweb/publication/234978587},
    year = {2020},
    month = {04},
    day = {01},
    faupublication = {yes},
    issn = {1544-9173},
    journaltitle = {Plos Biology},
    peerreviewed = {Yes},
    shortjournal = {PLOS BIOL},
    title = {Thinking small: next-generation sensor networks close the size gap in vertebrate biologging},
    type = {Article in Journal},
    }
  • M. Lübke, J. Fuchs, V. Shatov, A. Dubey, R. Weigel, and F. Lurz, "Combining Radar and Communication at 77 GHz Using a CDMA Technique" in 2020 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM), Linz, Austria, 2020 (to be published). [Bibtex]
    @inproceedings{luebke2020,
    author = {Lübke, Maximilian and Fuchs, Jonas and Shatov, Victor and Dubey, Anand and Weigel, Robert and Lurz, Fabian},
    booktitle = {2020 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM)},
    cris = {https://cris.fau.de/converis/publicweb/publication/234501926},
    year = {2020},
    month = {04},
    day = {20},
    eventdate = {2020-04-20/2020-04-22},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Combining Radar and Communication at 77 GHz Using a CDMA Technique},
    venue = {Linz, Austria},
    }
  • A. Dubey, J. Fuchs, M. Lübke, R. Weigel, and F. Lurz, "Generative Adversial Network based Extended Target Detection for Automotive MIMO Radar" in 2018 International Conference on Radar (RADAR), Washington DC, USA, 2020 (to be published). [Bibtex]
    @inproceedings{dubey2020,
    abstract = {In recent years, the automotive radar systems has gained substantial interest for different applications of autonomous driving. The performance of most applications likes classification and tracking directly relies on accurate target detection. The state-of-the-art detection pipeline is vulnerable to multi-path reflections, clutter noise, interference from another radar and leads to false or ghost detections. To address this issue, an end-to-end target detection pipeline using a residual based U-Net architecture is proposed. In contrast to the conventional approach, the network directly generates the detection map from range-Doppler map. The network uses a generative adversarial training over multiple real world measurements. We demonstrate that the proposed network can learn effectively to detect extended targets and shows significant improvement under increased noise floor in comparison to the state-of-the-art detection techniques.},
    author = {Dubey, Anand and Fuchs, Jonas and Lübke, Maximilian and Weigel, Robert and Lurz, Fabian},
    language = {English},
    booktitle = {2018 International Conference on Radar (RADAR)},
    cris = {https://cris.fau.de/converis/publicweb/publication/231325915},
    year = {2020},
    month = {04},
    day = {27},
    eventdate = {2020-04-27/2020-05-01},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Generative Adversial Network based Extended Target Detection for Automotive MIMO Radar},
    venue = {Washington DC, USA},
    }
  • J. Fuchs, A. Dubey, M. Lübke, R. Weigel, and F. Lurz, "Automotive Radar Interference Mitigation using a Convolutional Autoencoder" in 2018 International Conference on Radar (RADAR), Washington, DC, USA, 2020 (to be published). [Bibtex]
    @inproceedings{fuchs2020,
    abstract = {Automotive radar interference imposes big challenges on signal processing algorithms as it raises the noise floor and consequently lowers the detection probability. With limited frequency bands and increasing number of sensors per car, avoidance techniques such as frequency hopping or beamforming quickly become insufficient. Detect-and-repair strategies have been studied intensively for the automotive field, to reconstruct the affected signal samples. However depending on the type of interference, reconstruction of the time domain signals is a highly non-trivial task, which can affect following signal processing modules. In this work an autoencoder based convolutional neural network is proposed to perform image based denoising. Interference mitigation is phrased as a denoising task directly on the range-Doppler spectrum. The neural networks shows significant improvement with respect to signal-to-noiseplus- interference ratio in comparison to other state-of-the-art mitigation techniques, while better preserving phase information of the spectrum compared to other techniques.
    }, author = {Fuchs, Jonas and Dubey, Anand and Lübke, Maximilian and Weigel, Robert and Lurz, Fabian}, language = {English}, booktitle = {2018 International Conference on Radar (RADAR)}, cris = {https://cris.fau.de/converis/publicweb/publication/231966704}, year = {2020}, month = {04}, day = {27}, eventdate = {2020-04-27/2020-05-01}, faupublication = {yes}, note = {unpublished}, peerreviewed = {unknown}, title = {Automotive Radar Interference Mitigation using a Convolutional Autoencoder}, type = {Konferenzschrift}, venue = {Washington, DC, USA}, }
  • A. Elhaddad, H. Bruckmeyer, M. Hertlein, and G. Fischer, "Energy Consumption Evaluation of Cellular Narrowband Internet of Things (NB-IoT) Modules" in 2020 IEEE 6th World Forum on The Internet of Things (WF-IoT 2020), New Orleans, Louisiana, USA, 2020, p. 5 (to be published). [Bibtex]
    @inproceedings{elhaddad2020,
    abstract = {Communications field is witnessing an abrupt growth in the number of connected devices. The connected
    devices do not only include smartphones, but also connected devices through Internet of Things (IoT). Therefore, 3GPP defined Narrowband Internet of Things (NB-IoT) standard in LTE Rel-13 in order to serve low data rate IoT applications over mobile networks. NB-IoT modules are expected to have a low energy consumption in order to allow for battery usage of more than 10 years and provide a wide coverage area.

    In our lab, we developed a lab system setup in order to measure the energy consumption of 3 NB-IoT modules from 3 different manufacturers using an LTE network mock-up model. Accordingly, we measured the energy consumption by the modules, and derived a data traffic dependent energy consumption model in order to estimate the corresponding expected battery lifetime. Furthermore, we measured the energy consumption per bit of the modules against the different number of uplink Narrowband Physical Uplink Shared Channel (NPUSCH) repetitions.
    }, author = {Elhaddad, Ahmed and Bruckmeyer, Heiko and Hertlein, Markus and Fischer, Georg}, language = {English}, publisher = {IEEE Xplore}, booktitle = {2020 IEEE 6th World Forum on The Internet of Things (WF-IoT 2020)}, cris = {https://cris.fau.de/converis/publicweb/publication/233027837}, year = {2020}, month = {04}, day = {05}, eventdate = {2020-04-05/2020-04-09}, eventtitle = {IEEE 6th World Forum on Internet of Things 5-9 April 2020}, faupublication = {yes}, keywords = {5G,mMTC,LPWAN,CIoT,NB-IoT,Energy consumption,Battery lifetime}, note = {unpublished}, pages = {5}, peerreviewed = {unknown}, title = {Energy Consumption Evaluation of Cellular Narrowband Internet of Things (NB-IoT) Modules}, type = {Konferenzschrift}, venue = {New Orleans, Louisiana, USA}, }

  • F. Michler, K. Shi, S. Schellenberger, T. Lenhard, F. Dassel, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, "A Radar-Based Vital Sign Sensing System for In-Bed Monitoring in Clinical Applications" in German Microwave Conference 2020, Cottbus, Germany, 2020 (to be published). [Bibtex]
    @inproceedings{michler2020a,
    author = {Michler, Fabian and Shi, Kilin and Schellenberger, Sven and Lenhard, Thilo and Dassel, Florian and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    booktitle = {German Microwave Conference 2020},
    cris = {https://cris.fau.de/converis/publicweb/publication/230252106},
    year = {2020},
    month = {03},
    day = {09},
    eventdate = {2020-03-09/2020-03-11},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {A Radar-Based Vital Sign Sensing System for In-Bed Monitoring in Clinical Applications},
    venue = {Cottbus, Germany},
    }
  • E. Aguilar Mendoza, V. Issakov, and R. Weigel, "Highly-Integrated Scalable D-band Receiver Frontend Modules in a 130 nm SiGe Technology for Imaging and Radar Applications" in 2020 German Microwave Conference (GeMiC), Cottbus, Brandenburg, Germany, 2020. [Bibtex]
    @inproceedings{aguilar2020,
    abstract = {Two highly integrated, scalable D-Band receiver front-ends based on active and passive baluns which integrate a D-Band signal generator developed in a 130 nm SiGe technology are presented. The presented circuits exhibit a wide tuning range of 19 GHz around 110 GHz and achieve high conversion gains >20 dB and >12 dB for the active-based an passive-based approaches correspondingly. The new chips offer robust solutions for high-gain or high-linearity receivers while showing an extremely compact form factor. Both chips show competitive performance compared with state-of-the-art solutions. Due to their highly reduced area without compromising the power consumption, they can be directly integrated into high-density sensor arrays for imaging and radar  applications.  
    }, author = {Aguilar Mendoza, Erick and Issakov, Vadim and Weigel, Robert}, language = {English}, booktitle = {2020 German Microwave Conference (GeMiC)}, cris = {https://cris.fau.de/converis/publicweb/publication/233325098}, year = {2020}, month = {03}, day = {09}, eventdate = {2020-03-09/2020-03-11}, faupublication = {yes}, peerreviewed = {unknown}, title = {Highly-Integrated Scalable D-band Receiver Frontend Modules in a 130 nm SiGe Technology for Imaging and Radar Applications}, type = {Konferenzschrift}, venue = {Cottbus, Brandenburg, Germany}, }
  • T. Mai and R. Weigel, "An OTA-based 18-Bit SAR ADC Driver with Slew Rate Boost and Chopper Stabilization" in Workshop Analogschaltungen, Technische Universität Hamburg, Germany, 2020, p. 1. [Bibtex]
    @inproceedings{mai2020,
    author = {Mai, Timo and Weigel, Robert},
    language = {English},
    booktitle = {Workshop Analogschaltungen},
    cris = {https://cris.fau.de/converis/publicweb/publication/233234004},
    year = {2020},
    month = {03},
    day = {02},
    eventdate = {2020-03-02/2020-03-03},
    faupublication = {yes},
    pages = {1},
    peerreviewed = {No},
    title = {An OTA-based 18-Bit SAR ADC Driver with Slew Rate Boost and Chopper Stabilization},
    type = {Konferenzschrift},
    venue = {Technische Universität Hamburg, Germany},
    }
  • S. Erhardt, F. Tost, F. Lurz, R. Weigel, and A. Koelpin, "Design and Assembly of Miniature Long-Term Trackers for Migrating Bats" in German Microwave Conference 2020, Cottbus, Germany, 2020 (to be published). [Bibtex]
    @inproceedings{erhardt2020a,
    author = {Erhardt, Stefan and Tost, Frank and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    booktitle = {German Microwave Conference 2020},
    cris = {https://cris.fau.de/converis/publicweb/publication/230611547},
    year = {2020},
    month = {03},
    day = {09},
    eventdate = {2020-03-09/2020-03-11},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Design and Assembly of Miniature Long-Term Trackers for Migrating Bats},
    type = {Konferenzschrift},
    venue = {Cottbus, Germany},
    }
  • K. Shi, S. Schellenberger, C. Will, T. Steigleder, F. Michler, J. Fuchs, R. Weigel, C. Ostgathe, and A. Koelpin, "A dataset of radar-recorded heart sounds and vital signs including synchronised reference sensor signals", Scientific Data, 2020. [Bibtex]
    @article{shi2020,
    abstract = {Radar systems allow for contactless measurements of vital signs such as heart sounds, the pulse signal, and respiration. This approach is able to tackle crucial disadvantages of state-of-the-art monitoring devices such as the need for permanent wiring and skin contact. Potential applications include the employment in a hospital environment but also in home care or passenger vehicles. This dataset consists of synchronised data which are acquired using a Six-Port-based radar system operating at 24GHz, a digital stethoscope, an ECG, and a respiration sensor. 11 test subjects were measured in different defined scenarios and at several measurement positions such as at the carotid, the back, and several frontal positions on the thorax. Overall, around 223 minutes of data were acquired at scenarios such as breath-holding, post-exercise measurements, and while speaking. The presented dataset contains reference-labeled ECG signals and can therefore easily be used to either test algorithms for monitoring the heart rate, but also to gain insights about characteristic effects of radar-based vital sign monitoring.
    }, author = {Shi, Kilin and Schellenberger, Sven and Will, Christoph and Steigleder, Tobias and Michler, Fabian and Fuchs, Jonas and Weigel, Robert and Ostgathe, Christoph and Koelpin, Alexander}, language = {English}, publisher = {Springer Nature}, cris = {https://cris.fau.de/converis/publicweb/publication/232936220}, year = {2020}, month = {02}, day = {13}, faupublication = {yes}, issn = {2052-4463}, journaltitle = {Scientific Data}, peerreviewed = {Yes}, title = {A dataset of radar-recorded heart sounds and vital signs including synchronised reference sensor signals}, type = {Article in Journal}, }
  • J. Budroweit, M. Jaksch, R. Garcia Alía, A. Coronetti, and A. Koelpin, "Heavy Ion Induced Single Event Effects Characterization on an RF-Agile Transceiver for Flexible Multi-Band Radio Systems in NewSpace Avionics", Aerospace, vol. 7, iss. 14, pp. 1-19, 2020. [DOI] [Bibtex]
    @article{budroweit2020,
    abstract = {Nowadays, technologies have a massive impact on the design of avionic systems, even for the conservative space industry. In this paper, the single event effect (SEE) characterization of a highly integrated and radio frequency (RF) agile transceiver is being presented which is an outstanding candidate for future radio systems in NewSpace applications and space avionics. The device being investigated allows programmable re-configuration of RF specifications, where classical software-defined radios (SDR) only define an on-demand re-configuration of the signal processing. RF related configurations are untouched for common SDR and developed discretely by the specific application requirements. Due to the high integrity and complexity of the device under test (DUT), state-of-the-art radiation test procedures are not applicable and customized testing procedures need to be developed. The DUT shows a very robust response to linear energy transfer (LET) values up to 62.5 MeV.cm²/mg, without any destructives events and a moderate soft error rate},
    author = {Budroweit, Jan and Jaksch, Matthis and Garcia Alía, Rubén and Coronetti, Andrea and Koelpin, Alexander},
    cris = {https://cris.fau.de/converis/publicweb/publication/233863784},
    year = {2020},
    month = {02},
    day = {09},
    doi = {10.3390/AEROSPACE7020014},
    faupublication = {no},
    issn = {2226-4310},
    journaltitle = {Aerospace},
    keywords = {single event effects; heavy ion; software-defined radio; space avionics; RFIC; NewSpace},
    number = {14},
    pages = {1--19},
    peerreviewed = {Yes},
    title = {Heavy Ion Induced Single Event Effects Characterization on an RF-Agile Transceiver for Flexible Multi-Band Radio Systems in NewSpace Avionics},
    type = {Article in Journal},
    url = {https://www.mdpi.com/2226-4310/7/2/14/pdf},
    volume = {7},
    }
  • M. Frank, F. Lurz, R. Weigel, and A. Koelpin, "Universal low-cost Transmitarray Antenna Design at 61 GHz for Beam Steering with different Feed Antennas" in 24th International ITG Workshop on Smart Antennas (WSA 2020), Hamburg, Germany, 2020 (to be published). [Bibtex]
    @inproceedings{frank2020a,
    author = {Frank, Martin and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {24th International ITG Workshop on Smart Antennas (WSA 2020)},
    cris = {https://cris.fau.de/converis/publicweb/publication/230809799},
    year = {2020},
    month = {02},
    day = {18},
    eventdate = {2020-02-18/2020-02-20},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Universal low-cost Transmitarray Antenna Design at 61 GHz for Beam Steering with different Feed Antennas},
    venue = {Hamburg, Germany},
    }
  • A. Thalmayer, S. Zeising, G. Fischer, and J. Kirchner, "A Robust and Real-Time Capable Envelope-Based Algorithm for Heart Sound Classification: Validation under Different Physiological Conditions", Sensors, vol. 20, iss. 4, 2020. [DOI] [Bibtex]
    @article{thalmayer2020,
    abstract = {This paper proposes a robust and real-time capable algorithm for classification of the first
    and second heart sounds. The classification algorithm is based on the evaluation of the envelope curve
    of the phonocardiogram. For the evaluation, in contrast to other studies, measurements on twelve
    probands were conducted in different physiological conditions. Moreover, for each measurement the
    auscultation point, posture and physical stress were varied. The proposed envelope-based algorithm
    is tested with two different methods for envelope curve extraction: the Hilbert transform and
    the short-time Fourier transform. The performance of the classification of the first heart sounds
    is evaluated by using a reference electrocardiogram. Overall, by using the Hilbert transform,
    the algorithm has a better performance regarding the F1-score and computational effort. The
    proposed algorithm achieves for the S1 classification an F1-score up to 95.7% and in average 90.5 %.
    The algorithm is robust against the age, BMI, posture, heart rate and auscultation point (except
    measurements on the back) of the subjects. The ECG and PCG records are available from the authors.
    }, author = {Thalmayer, Angelika and Zeising, Samuel and Fischer, Georg and Kirchner, Jens}, language = {English}, cris = {https://cris.fau.de/converis/publicweb/publication/234137709}, year = {2020}, month = {02}, day = {11}, doi = {10.3390/S20040972}, faupublication = {yes}, issn = {1424-8220}, journaltitle = {Sensors}, number = {4}, peerreviewed = {Yes}, shortjournal = {SENSORS-BASEL}, title = {A Robust and Real-Time Capable Envelope-Based Algorithm for Heart Sound Classification: Validation under Different Physiological Conditions}, type = {undefined}, url = {https://www.mdpi.com/1424-8220/20/4/972}, volume = {20}, }

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All Publications...

Most recent patents

  • F. Lurz, S. Lindner, A. Koelpin, G. Sept-Enzel, P. Dingler, and E. Halder, Elektrisches Messsystem zur Frequenzmessung und Erkennung von Störsignalen und Betriebsverfahren hierfür, 2016. [Bibtex]
    @patent{lurz_patent_2016,
    author = {Lurz, Fabian and Lindner, Stefan and Koelpin, Alexander and Sept-Enzel, Gerold and Dingler, Peter and Halder, Ernst},
    cris = {lurz_patent_2016},
    year = {2016},
    month = {10},
    day = {13},
    number = {DE 102016119562 B3},
    title = {Elektrisches Messsystem zur Frequenzmessung und Erkennung von Störsignalen und Betriebsverfahren hierfür},
    type = {patent},
    }
  • M. Trautmann, B. Sanftl, A. Koelpin, T. Heckel, L. Frey, S. Ditze, A. Endruschat, C. Joffe, A. Rosskopf, and T. Schriefer, System zur drahtlosen Übertragung von Energie und Daten, 2016. [Bibtex]
    @patent{trautmann_patent_2016,
    abstract = {Die Erfindung betrifft ein System zur drahtlosen Übertragung von Energie und Daten, bei dem mindestens zwei in einem Abstand zueinander angeordnete Spulen oder elektrische Leiterbahnen für die Übertragung von Energie vorhanden sind. Dabei ist jeweils mindestens eine elektrische Spule oder elektrische Leiterbahn zur Übertragung von Energie und/oder mindestens eine elektrische Spule oder elektrische Leiterbahn zur Übertragung von Daten an jeweils eine elektrische Wechselspannungsquelle angeschlossen. Dabei ist mindestens eine elektrische Wechselspannungsquelle modulierbar. Die elektrischen Spulen oder elektrischen Leiterbahnen zur Übertragung von Daten sind mit elektrischer Spannung mit einer Frequenz, die kleiner als die Frequenz mit der eine elektrische Spannung zur Übertragung von Energie mittels der elektrischen Spulen oder elektrischen Leiterbahnen zur Übertragung von Energie eingesetzt ist, betrieben.},
    author = {Trautmann, Martin and Sanftl, Benedikt and Koelpin, Alexander and Heckel, Thomas and Frey, Lothar and Ditze, Stefan and Endruschat, Achim and Joffe, Christopher and Rosskopf, Andreas and Schriefer, Thomas},
    cris = {trautmann_patent_2016},
    year = {2016},
    month = {09},
    day = {29},
    keywords = {Inductive Power Transfer},
    number = {102016206767.2},
    title = {System zur drahtlosen Übertragung von Energie und Daten},
    type = {patent},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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