Verification of dual-polarized ultra-wideband channel sounder for THz applications. - In: 2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), (2021), insges. 5 S.
The lower THz bands are foreseen as candidates to achieve the data-rates demanded in the sixth generation (6G) of wireless communications. Hence, multiple measurements for characterization of propagation at these frequencies in different scenarios are being conducted all around the world. This also impulses activities on standardization of measurement equipment and methodologies to define common practices and make measurements from different actors comparable. Therefore, in the present paper we investigate the accuracy of a dual-polarized ultra-wideband channel sounder in the time, angular, and polarization domains by means of a verification methodology based on interferometry.
https://doi.org/10.1109/PIMRC50174.2021.9569491
Development of a dynamic model of lithium ion battery pack for battery system monitoring algorithms in electric vehicles. - In: 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), (2021), S. P.1-P.10
The main objective of this paper is to develop an accurate and a self-corrective model for lithium ion battery pack, based on the analysis of properties and performance of equivalent circuit models of pack's cells and the use of artificial neural networks. This model is expected to meet the requirements for improving the accuracy of battery state estimation required for the monitoring algorithms of the battery system in electric vehicles.The use of the neural network will make it possible to adjust and correct modelling deviations and errors in equivalent circuit model parameters by comparing the modelled cells voltage and the measured voltage and generating modified model parameters based on this comparison.The validation experimental results show that the parameters of the modified model contributed to reducing the error rate in the cell voltage by approximately 70-80% of the error rate in the equivalent circuit model voltage.
https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570709
Experimentelle Untersuchung eines SAW-Systems zur Parallelanalyse einzelner Zellen. - In: Experimentelle Strömungsmechanik - 28. Fachtagung, 7.-9. September 2021, Bremen, (2021), 35
The von Kármán Vortex Street, an archetype for Machine Learning in turbulence. - In: Experimentelle Strömungsmechanik - 28. Fachtagung, 7.-9. September 2021, Bremen, (2021), 29
Experimentelle Untersuchung von turbulenten Strömungsstrukturen in Mischkonvektion. - In: Experimentelle Strömungsmechanik - 28. Fachtagung, 7.-9. September 2021, Bremen, (2021), 18
3D3C Strömungsmessungen zum Einfluss akustisch induzierter Wirbelstrukturen auf die Partikelfraktionierung in Mikrokanälen. - In: Experimentelle Strömungsmechanik - 28. Fachtagung, 7.-9. September 2021, Bremen, (2021), 2
Temperatur- und Druckabhängigkeit des elektrischen Kontaktwiderstands von Kupfer. - In: DVS Congress 2021, (2021), S. 536-542
Numerische Berechnung und Optimierung einer WAAM-Gaskühlung. - In: DVS Congress 2021, (2021), S. 308-314
Einfluss der Eindringtiefe auf Prozess- und Verbindungseigenschaften von Rührreibschweißverbindungen in der Elektromobilität. - In: DVS Congress 2021, (2021), S. 217-224
Einfluss von Schutzgas auf die Emissionen beim Lichtbogenschweißen. - In: DVS Congress 2021, (2021), S. 141-148