Can you increase frequency resolution of FFT without increasing window size?

1. How can frequency resolution of FFT be improved?
2. How can you get a high frequency resolution in the spectrum of the FFT?
3. How do you increase frequency resolution in spectrogram?
4. Does resolution increase with frequency?

How can frequency resolution of FFT be improved?

To increase the frequency resolution for a given frequency range, increase the number of points acquired at the same sampling frequency. For example, acquiring 2,048 points at 1.024 kHz would have yielded ∆f = 0.5 Hz with frequency range 0 to 511.5 Hz.

How can you get a high frequency resolution in the spectrum of the FFT?

The most intuitive way to increase the frequency resolution of an FFT is to increase the size while keeping the sampling frequency constant. Doing this will increase the number of frequency bins that are created, decreasing the frequency difference between each.

How do you increase frequency resolution in spectrogram?

In order to increase the precision of the peak frequencies beyond the spectrogram resolution, an interpolation algorithm is used. This parameter determines the number of points used for interpolation.

Does resolution increase with frequency?

Lower frequencies produce less resolution but have greater depth of penetration into the body; higher frequencies produce greater resolution but depth of penetration is limited.