What does the word 'bin' mean in the context of FFT's?

1. What is a bin in FFT?
2. What is DC bin?
3. What is a bin center?
4. What is the relationship between Fourier transform and FFT?

What is a bin in FFT?

frequency bins are intervals between samples in frequency domain. For example, if your sample rate is 100 Hz and your FFT size is 100, then you have 100 points between [0 100) Hz. Therefore, you divide the entire 100 Hz range into 100 intervals, like 0-1 Hz, 1-2 Hz, and so on.

What is DC bin?

The first bin is the DC which is the sum/average of the samples in time domain. It's zero if your signal is zero mean. Otherwise it's not.

What is a bin center?

A Bin Center is a drop off facility that is smaller than a public warehouse. Often operated by a third-party logistics provider, the bin center serves as a consolidation point for smaller shipments or overflow from an existing warehouse.

What is the relationship between Fourier transform and FFT?

The only difference between FT(Fourier Transform) and FFT is that FT considers a continuous signal while FFT takes a discrete signal as input. DFT converts a sequence (discrete signal) into its frequency constituents just like FT does for a continuous signal.