Howtosignalprocessing
- How do you find the amplitude and phase of a signal?
- How do you plot amplitude and phase spectrum in a Fourier series?
- Does Fourier transform give amplitude?
How do you find the amplitude and phase of a signal?
As for the amplitudes you can get them directly by calculating the peak values of the sine waves. Afterwards you can calculate the phase angle phi= phi2-phi1 and the ratio of the magnitudes between B/A. All you need is to display the waveforms in same diagram.
How do you plot amplitude and phase spectrum in a Fourier series?
The exponential Fourier series representation of a periodic function x(t) has amplitude coefficients Cn which are complex and can be represented by magnitude and phase. Hence, we can plot the amplitude spectrum (|Cn| versus ω) and the phase spectrum (∠Cnversusω).
Does Fourier transform give amplitude?
Figure 7: Time domain signals (left) and their corresponding Fourier Transforms (left). A sine wave is the most fundamental component of a Fourier Transform. A Fourier Transform of a sine wave produces a single amplitude value with corresponding phase (not pictured) at a single frequency.
