Electrical Engineering Glossary Definition for Anti-Aliasing

Definition
An anti-aliasing filter is used before A/D conversion. It is a lowpass filter that removes signal components above the Nyquist frequency, thereby eliminating their sampled replicas (aliases) in the baseband.

Also see:

• Application Note/Tutorial: Filter Basics: Anti-Aliasing
• The Basics of Anti-Aliasing: Using Switched-Capacitor Filters


Synonyms
• anti-alias

See Also
• Show application notes for: "Anti-Aliasing"
• Nyquist
• A/D Converter
• Aliasing

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