Frequency spectrum of a signal is the range of frequencies contained by a signal . For example, a square wave is shown in Fig. 3.5A. It can be represented by a series of sine waves, S(t) = 4A/π sin(2πft) + 4A/3π sin(2π(3f)t) + 4A/5π sin(2π(5f)t + …)
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The signal spectrum describes a signal’s magnitude and phase characteristics as a function of frequency . The system spectrum describes how the system changes signal magnitude and phase as a function of frequency.
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What is a Spectrum? • A signal is a function of time which can be represented by a series of sinusoidal functions or sinusoidal components . • These sinusoidal components have different frequencies, different amplitudes, and different phases.
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amplitude spectrum specifies the amplitude of signal components as a function of component . frequency . The phase spectrum specifies the phase of signal components as a function of. component frequency. This phase is measured with respect to a cosine reference.
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Frequency Domain The amplitude spectrum simply gives amplitude at each frequency . The phase spectrum simply gives the phase at each frequency (Figure 2.20). Figure 2.20. (a) Amplitude spectra.
Read moreWhat is meant by frequency spectrum?
Frequency spectrum of a signal is the range of frequencies contained by a signal .
Read moreHow do you find the spectrum of a signal?
Frequency spectrum of a signal is the range of frequencies contained by a signal. For example, a square wave is shown in Fig. 3.5A. It can be represented by a series of sine waves, S(t) = 4A/π sin(2πft) + 4A/3π sin(2π(3f)t) + 4A/5π sin(2π(5f)t + …)
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