9 terms in this category.
A
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Autocorrelation
Autocorrelation is the cross-correlation of a signal with a delayed copy of itself, producing a function that measures how similar the signa...
C
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Cross-Correlation
Cross-correlation measures the similarity between two signals as a function of a time lag applied to one of them, producing a sequence (or f...
D
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Dirichlet Kernel
The Dirichlet kernel is a trigonometric function defined as the sum of N complex exponentials equally spaced in frequency, evaluating to sin...
H
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Harmonics
Harmonics are frequency components in a signal at integer multiples of a fundamental frequency. In embedded signal processing, they appear i...
P
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Periodogram
A periodogram is an estimate of the power spectral density (PSD) of a signal, commonly computed by squaring the magnitude of the signal's di...
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Power Spectral Density
S
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Spectrogram
A spectrogram is a two-dimensional representation of how the frequency content of a signal evolves over time, typically displayed as a plot ...
W
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Welch Method
The Welch method is a technique for estimating the power spectral density (PSD) of a signal by computing averaged modified periodograms of o...
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White Noise
White noise is a random signal whose power spectral density (PSD) is flat across all frequencies -- meaning every frequency band of equal wi...
