Howtosignalprocessing
- What is the Y axis in Fourier transform?
- What is y axis in frequency domain?
- What are the units of the Y axis FFT?
- What is the Y axis of a spectrum?
What is the Y axis in Fourier transform?
The frequency spectrum is from 0 to fs, where fs is your sampling frequency.So in response to your question the Y-axis is the amplitude (because you took the ABS value of the complex output) and the X-axis is the frequency values from 0 to fs.
What is y axis in frequency domain?
The Y axis (amplitude)
Frequency-domain measurements are sometimes viewed with a linear Y axis and a linear X axis, but usually must be viewed with a logarithmic Y axis, because this is the only way to view very small signals and much larger signals simultaneously. Let's look at the spectrum of a sine wave.
What are the units of the Y axis FFT?
The units for the X-axis is megahertz and the Y-axis is amplitude.
What is the Y axis of a spectrum?
The y-axis shows how bright the light is at that wavelength. Today, when scientists say "spectrum," they usually mean this x-y graph. The picture below shows a typical spectrum measured by the SDSS. It takes about an hour to collect enough light to measure a spectrum.
