Howtosignalprocessing
- What is single-sided and double sided spectrum?
- How do you plot a single-sided amplitude spectrum?
- What is a one sided Fourier transform?
- What is FFT spectrum?
What is single-sided and double sided spectrum?
A two-sided power spectrum displays half the energy at the positive frequency and half the energy at the negative frequency. Therefore, to convert a two-sided spectrum to a single-sided spectrum, you discard the second half of the array and multiply every point except for DC by two, as shown in the following equations.
How do you plot a single-sided amplitude spectrum?
To convert to the single-sided form, multiply each frequency other than DC by two, and discard the second half of the array. The units of the single-sided amplitude spectrum are then in quantity peak and give the peak amplitude of each sinusoidal component making up the time-domain signal.
What is a one sided Fourier transform?
"The one-sided Fourier transform has only positive frequency components and its amplitude is twice the amplitude of the double-sided Fourier transform." Perhaps it would be good to define "one-sided Fourier Transform".
What is FFT spectrum?
The resulting digital time record is then mathematically transformed into a frequency spectrum using an algorithm known as the Fast Fourier Transform, or FFT. The FFT is simply a clever set of operations which implements Fourier's theorem. The resulting spectrum shows the frequency components of the input signal.
