Tektronix TDS5054, Руководство пользователя

Страница: 233 / 361

Creating and Using Math Waveforms
3- 166
TDS5000 Series User Manual
Hamming Window: This window is unique in that the time domain shape does
not taper all the way to zero at the ends. This makes it a good choice if you
wanted to process the real and imaginary parts of the spectrum off line and
inverse transform it back to the time domain. Because the data does not taper to
zero, you could remove the effect of the window function from the result.
1
0
Amplitude
Time
--43 dB side lobe
0
--80
dB
Frequency bins
--40
Figure 3- 52: Time and frequency graphs of the Hamming window