Filter
Top Products
Fast Fourier Transforms
Reference
Rectangular Window
Hanning Window
Hamming Window
Blackman-Harris
Window
FFT Window Type Bandpass Filter
0.89
-3 dB Bandwidth Highest Side Lobe
1.28
1.28
1.28
-13 dB
–32 dB
–43 dB
–94 dB
Figure 3-28: FFT Windows and Bandpass Characteristics
Care should be taken when using bell shaped widows to be sure that the
most interesting parts of the signal in the time domain record are positioned in
the center region of the window so that the tapering does not cause severe
errors.
See
Waveform Differentiation
, on page 3-150.
See
Waveform Integration
, on page 3-154.
See
Waveform Math
, on page 3-159.
For More
Information