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Guide to Spectral Proper Orthogonal Decomposition

Oliver T. Schmidt; Tim Colonius

AIAA Journal · 2020 · Inggris · OpenAlex Scopus

This paper discusses the spectral proper orthogonal decomposition and its use in identifying modes, or structures, in flow data. A specific algorithm based on estimating the cross-spectral density tensor with Welch’s method is presented, and guidance is provided on selecting data sampling…