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Aliasing

Aliasing

Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original signal...

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Related Experiment Video

Updated: May 16, 2026

A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets

A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets

Published on: December 5, 2014

Blink rate in ALS

Susan Byrne¹, Faruq Pradhan, Sorcha Ni Dhubhghaill

¹Beaumont Hospital and Trinity College, Dublin. suabyrne@hotmail.com

Amyotrophic Lateral Sclerosis & Frontotemporal Degeneration

|November 16, 2012

Summary

No abstract available in PubMed .

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