A characteristic dynamic mode decomposition

@article{Sesterhenn2019ACD,
  title={A characteristic dynamic mode decomposition},
  author={J{\"o}rn Sesterhenn and Amir Shahirpour},
  journal={Theoretical and Computational Fluid Dynamics},
  year={2019},
  pages={1-25}
}
Temporal or spatial structures are readily extracted from complex data by modal decompositions like proper orthogonal decomposition (POD) or dynamic mode decomposition (DMD). Subspaces of such decompositions serve as reduced order models and define either spatial structures in time or temporal structures in space. On the contrary, convecting phenomena pose a major problem to those decompositions. A structure traveling with a certain group velocity will be perceived as a plethora of modes in… 

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