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Anti-aliasing filter
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Mathematical transformation reducing the damage caused by aliasing
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An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem over the band of interest. Since the theorem states that unambiguous reconstruction of the signal from its samples is possible when the power of frequencies above the Nyquist frequency is...

Instance of
Digital signal processing
Technology
Subclass of
Technique (method)
Signal processing
Digital signal processing
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