Approximation Theory
Aliasing is a phenomenon that occurs when a continuous signal is sampled at a rate that is insufficient to capture its changes accurately, leading to distortions in the reconstructed signal. This misrepresentation happens because higher frequency components of the signal become indistinguishable from lower frequencies, resulting in misleading or erroneous representations. Understanding aliasing is crucial for effectively utilizing sampling techniques and ensuring signal fidelity in digital signal processing.
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