Appendix D: Sample Waveforms

D-2 AWG610 Arbitrary Waveform Generator User Manual

Waveform File Descriptions

This subsection describes the 22 representative waveform files. Some of the

waveform files were obtained by creating an equation file in the equation editor

and then compiling it to create a waveform file. Others were created in the

waveform editor or disk application. To output a waveform file, select the file in

the SETUP menu.

TableD-2: Gaussian pulse

File name GAUSS_P.WFM Made with equation editor
Equation size = 640
clock = 1e9
'pulse width k0 = 30e-9
'peak location k1 = 320e-9
gauss_p.wfm" = exp(-log(2) * ((2* (time - k1) / k0) ^ 2))
Descriptions The waveform that is generated when the pulse width is tW50 and the
peak location is 0 can be expressed as:
V(t) +expNJ–In(2)@ǒ2t
tw50Ǔ2Nj
F(jw)+2p
Ǹs@expǒ–w2s2
2Ǔ
This shows that this signal has a form in the frequency domain
as well.
f(t)+expǒ–t2
2s2Ǔ
Substituting gives,
s+tw50
22In(2)
Ǹ
and taking the Fourier transform gives:
Example When tw50 is 30 ns, the bandwidth will be 10.4 MHz.
Settings Waveformpoints: 640, Clock frequency: 1.0 GHz,
Output time: 640 ns