Wednesday, May 07, 2008

FFT Window references

http://www.lds-group.com/docs/site_documents/AN014%20Understanding%20FFT%20Windows.pdf
http://www.bores.com/courses/advanced/windows/files/windows.pdf

The first link has a table with window characteristics:

Window / Best for these Signal Types / Frequency Resolution / Spectral Leakage / Amplitude Accuracy
Barlett: Random / Good / Fair / Fair
Blackman: Random or mixed / Poor / Best / Good
Flat top: Sinusoids / Poor / Good / Best
Hanning: Random / Good / Good / Fair
Hamming: Random / Good / Fair / Fair
Kaiser-Bessel: Random / Fair / Good / Good
None (boxcar): Transient & Synchronous Sampling / Best / Poor / Poor
Tukey: Random / Good / Poor / Poor
Welch: Random / Good / Good / Fair

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