Spring reverb emulation with hybrid gated convolutional networks and state space models
Published in: ICASSP 2026
M. Wess, J. Janser, D. Dallinger, J. Janser, M. Wess, M. Bittner, D. Schnöll, A. Jantsch
Modeling analog spring reverbs is challenging due to nonlinear behaviors and long tails. We propose GCN-SSM, a hybrid deep learning model combining gated convolutional networks and state space models. Achieving top-tier, industry-leading perceptual quality, it requires only 125.7k parameters and allows modern CPU deployment.
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Analyses of materials behavior and solder fatigue test and prediction results for long-term thermal cycling
Published in: 2025 26th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)
Peter Fruehauf, Andreas Weigert, Rainer Dudek, Kerstin Kreyßig, Matthias Prinz, Susana Richter-Trummer, Sven Rzepka
This study validates FE simulations against 13-year thermal tests to predict fatigue life in FBGA277 and QFN components. Accounting for material aging and cure shrinkage in molding compounds is essential, omitting shrinkage flips calculated warpage. Aged Anand creep laws match physical failure patterns, unlike unaged data.
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Reconfigurable intelligent surface for industrial automation: mmWave propagation measurement, simulation, and control algorithm requirements
Published in: 2024 IEEE 35th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
L. W. Mayer, A. Hofmann, M. Schiefer, H. Radpour, M. Hofer, D. Löschenbrand, T. Zemen
Our research presents an active 127-element reconfigurable intelligent surface (RIS) operating at 23.8 GHz bypasses line-of-sight blockages in industrial mmWave environments. Controlled via FET-based amplification, it effectively focuses signals onto target points. Measurements confirm beamwidth performance, providing practical update criteria for mobile indoor tracking.
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Modelling of SiC and GaN transistors based on pulsed S-parameter measurements
Published in: December 2025, Power Electronic Devices and Components
Martin Hergt, Bernhard Hammer, Martin Sack, Lukas W. Mayer, Sebastian Nielebock, Marc Hiller
In this research project, we derived a precise 12-element model for SiC MOSFET and GaN HEMT power transistors using pulsed S-parameter measurements from 2 MHz to 500 MHz. Covering pinch-off, ohmic, and active regions, the iteratively adjusted model exhibits an excellent match with original measurements for fast inverters.
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AI-based motion control with system dynamics flexibility
Published in: 2024 Energy Conversion Congress & Expo Europe (ECCE Europe)
Niklas Körwer; Martin Bischoff; Michael Laumen; Rik W. De Doncker
The algorithms in today’s production machines are becoming more complex every day in order to keep up with market demands for increased productivity and flexibility. This paper proposes using reinforcement learning and neural networks to accelerate motion control development for production machines. Trained on digital twins, the network adapts motor setpoints to frequency converter dynamics, reducing following errors, smoothing control and enabling flexible reuse across various machine configurations.
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