5 Questions
What does the power spectrum $S_{xx}(f)$ of a time series $x(t)$ describe?
The distribution of power into frequency components composing the signal
According to Fourier analysis, how can any physical signal be decomposed?
Into a number of discrete frequencies or a spectrum of frequencies over a continuous range
What does the power spectral density (PSD) refer to?
The distribution of power into frequency components over all time
When is the energy spectral density computed?
When the energy of the signal is concentrated around a finite time interval
What is the power spectral density (PSD) commonly used for?
Signals existing over all time or over a time period large enough
Test your knowledge of power spectra and Fourier analysis with this quiz. Explore the distribution of power into frequency components and the decomposition of physical signals into discrete frequencies.
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