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whatphysics
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What is the difference between amplitude spectrum and frequency spectrum? In signals and systems.
I think a frequency spectrum is a plot of frequency versus power (usually in decibels, in engineering). The power will be measured in a narrow passband which is swept across the spectrum,.whatphysics said:What is the difference between amplitude spectrum and frequency spectrum? In signals and systems.
An amplitude spectrum is a representation of the amplitudes of different frequencies present in a signal. It is a plot of the amplitude values against the corresponding frequencies.
A frequency spectrum is a representation of the frequencies present in a signal. It is a plot of the frequency values against the corresponding amplitudes.
The main difference between amplitude spectrum and frequency spectrum is the type of information they provide. While the amplitude spectrum shows the amplitudes of different frequencies, the frequency spectrum shows the frequencies present in a signal. Additionally, the amplitude spectrum is a plot of amplitude values against frequencies, whereas the frequency spectrum is a plot of frequency values against amplitudes.
In a spectrum, the amplitude and frequency are inversely related. This means that as the frequency increases, the amplitude decreases and vice versa. This relationship is known as the amplitude-frequency relationship or the amplitude modulation.
The amplitude and frequency spectra are important in signal processing as they provide valuable information about the characteristics of a signal. They can help in identifying the different components present in a signal, detecting any anomalies or disturbances, and analyzing the overall quality of a signal. They are also used in various applications such as audio and image processing, communication systems, and medical diagnostics.