Notes on Digital-Data Analysis

Lennart S Hultgren

NASA NTRS · 20210015770

Notes on Digital-Data Analysis

Abstract

The presentation is an overview and discussion of concepts normally encountered during digital-signal processing of sampled time histories. It is not a comprehensive literature survey, but simply a practical guide for best usage. Sections of the talk cover: digital sampling and representation, the Nyquist-Shannon sampling theorem, aliasing or frequency folding, the power spectrum, windowing and spectral spreading, scalloping, and best practices. The Advanced Air Transport Technology Project supports this effort.

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Aeroacoustics Digital-Data Processing,Finite Time Series

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Lennart S Hultgren. Notes on Digital-Data Analysis. https://ntrs.nasa.gov/citations/20210015770

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