Wolfgang Utschick
3 papers in the PaperMetrix corpus
Papers by this author
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Measuring Impropriety in Complex and Real Representations
2018 · mediaTUM (Technical University of Munich)
Abstract So-called improper signals, i.e., signals which are correlated with their complex conjugates, can occur in many signal processing applications such as communication systems, medical imaging, audio and speech processing, analysis of oceanographic data, and …
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An Asymptotically MSE-Optimal Estimator based on Gaussian Mixture Models
2021 · arXiv (Cornell University)
This paper investigates a channel estimator based on Gaussian mixture models (GMMs) in the context of linear inverse problems with additive Gaussian noise. We fit a GMM to given channel samples to obtain an analytic …
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Optimization and Interpretability of Graph Attention Networks for Small Sparse Graph Structures in Automotive Applications
2023 · arXiv (Cornell University)
For automotive applications, the Graph Attention Network (GAT) is a prominently used architecture to include relational information of a traffic scenario during feature embedding. As shown in this work, however, one of the most popular …