PeakTech 1280 Bedienungsanleitung Seite 89

Blackman
Hanning
The figures below are examples for measuring sine wave with a frequency of 1 kHz under the
selection of four different window for FFT:
Best solution for magnitude,
worst for frequency.
Recommend to use for:
Blackman
 Single frequency waveforms,
to find higher order harmonics.
Good for magnitude, but poorer
frequency resolution
Hamming.
Recommend to use for:
 Sine, periodic and narrow
band random noise.
 Transients or bursts where the
signal levels before and after
the event are significantly
different.
Hamming window
Rectangle window
Blackman window
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