C
Christian Berger
Researcher at Pontifical Catholic University of Chile
Publications - 213
Citations - 9012
Christian Berger is an academic researcher from Pontifical Catholic University of Chile. The author has contributed to research in topics: Orthogonal frequency-division multiplexing & Communication channel. The author has an hindex of 43, co-authored 196 publications receiving 7338 citations. Previous affiliations of Christian Berger include University of Mainz & Karlsruhe Institute of Technology.
Papers
More filters
Journal ArticleDOI
An Image Transform Based on Temporal Decomposition
Felix Cremer,Mikhail Urbazaev,Christian Berger,Miguel D. Mahecha,Christiane Schmullius,Christian Thiel +5 more
TL;DR: This work explores the potential of empirical mode decomposition (EMD), a data-driven approach to decompose the temporal signal into components of different frequencies and suggests that EMD features speckle suppression capabilities similar to that of the Quegan filter while preserving the original image resolution.
Journal ArticleDOI
Documentation as Art Practice in the 1960s
Christian Berger,Jessica Santone +1 more
TL;DR: In this article, the authors address the practice of documentation in the art of the 1960s and present a range of practices in experimental photography, conceptualism, and performance art, by artists situated in different local or transnational contexts.
Proceedings ArticleDOI
Expanding an urban structure type mapping approach from a subarea to the entire city of Berlin
TL;DR: This study maps urban structure types of the city of Berlin on the basis of a prior land cover classification utilizing a synergistic approach of knowledge based classification and Random Forests and shows that UST classification based on a combination of prototype objects and Random forests is suitable to generate accurate UST maps for these areas with only minor adaptations.
Journal ArticleDOI
“Would You Be My Friend?”: Friendship Selection and Contagion Processes of Early Adolescents Who Experience Victimization:
TL;DR: In this article, the authors investigated friendship selection in early adolescence and found that friendship is especially important in this time period, and recommended a friendship selection strategy for early adolescence victims of bullying.
Proceedings Article
Demodulation of Underwater OFDM Transmissions by Time Reversal and Basis Pursuit Methods
TL;DR: A channel shortening approach based on passive time reversal (PTR) for underwater acoustic communication using OFDM, which adopt recent basis pursuit methods for identification of sparse responses from PTR channel probes, improving the performance relative to PTR with directly observed channel responses.