Math
161
Window
Applications and Characteristics
Rectangle
These are normally used when the signal is transient (completely contained in the time-
domain window) or known to have a fundamental frequency component that is an integer
multiple of the fundamental frequency of the window. Signals other than these types will
show varying amounts of spectral leakage and scallop loss, which can be corrected by
selecting another type of window.
Hanning
These reduce leakage and improve amplitude accuracy.
However, frequency resolution is also reduced.
Hamming
These reduce leakage and improve amplitude accuracy. However, frequency resolution is also
reduced.
Flat Top
This window provides excellent amplitude accuracy with moderate reduction of leakage, but
with reduced frequency resolution.
Blackman
It reduces the leakage to a minimum, but with reduced frequency resolution.
Table 13.3
FFT Window
Split Mode, Zoom off
Split Mode, Zoom on
Figure 13.16
Split Mode Display
Full Screen Mode
Exclusive Mode
Figure 13.17
Full and Exclusive Mode Display
Содержание 2560B Series
Страница 1: ......
Страница 51: ...Digital Channels 51 Figure 8 9 Digital Bus...
Страница 127: ...Serial Trigger and Decode 127 Figure 10 63 Manchester Bus...
Страница 168: ...Reference Waveform 168 Figure 14 1 Recall REFB...
Страница 210: ...Save Recall 210 Figure 22 4 Save As...