What is spectrum frequency domain?

The “spectrum” of frequency components is the frequency-domain representation of the signal . The inverse Fourier transform converts the frequency-domain function back to the time-domain function. A spectrum analyzer is a tool commonly used to visualize electronic signals in the frequency domain.

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What is the phase of a signal?

The phase involves the relationship between the position of the amplitude crests and troughs of two waveforms . Phase can be measured in distance, time, or degrees. If the peaks of two signals with the same frequency are in exact alignment at the same time, they are said to be in phase.

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