Aliasing: Your Time Series is Lying to You

An intuitive introduction to signal aliasing with Python

Harrison Hoffman
Towards Data Science
12 min readJul 12, 2023

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Aliased Fan. Image by Author.

Time series data is everywhere and full of rich information. Financial markets, industrial processes, sensor readings, health monitors, network traffic, and economic indicators, to name a few, are example applications where time series analysis and signal processing are necessary.

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Believer, husband, dad, and data scientist interested in applied math, data science, software development, and machine learning.