Signal ProcessingInternubiquitous

Aliasing: Overlapping Spectra When fs < 2·fmax

Updated 18 May 2026

Contents & prerequisites

Prerequisites

Sampling Theorem: fs ≥ 2·fmax (Nyquist Criterion)

Unlocks

Ideal Sampling: Impulse Train Multiplication

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Aliasing: Overlapping Spectra When fs < 2·fmax

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Learning

NextAll-Pass System: |H(e^(jω))| = 1 for all ω

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