Appendix D: Sample Waveforms

D-2 AWG710&AWG710B Arbitrary Waveform Generator User Manual

Waveform File Descriptions

This subsection describes the 22 re presentative waveform files. Some of the

waveform files were obtained by creating an equation f ile in the equation edit or and

then compiling it to create a waveform file. O thers 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 = 1000
clock = 1e9
’pulse width k0 = 30e
’9’peak location k1 = 500e-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:
Substituting gives,
and taking the Fourier transform gives:
This shows that this signal has a form in the frequency domain as
well.
Example When tw50 is 30 ns, the bandwidth will be 10.4 MHz.
Settings Waveform points: 640, Clock frequency: 1.0 GHz,
Output time: 640 ns
Vt() In 2() 2t
tw50
---------


2
⋅–



exp=
σtw50
22In 2()
-------------------------=
f
t() t2
2σ2
---------–



exp=
Fjω() 2πσ ω2σ2
2
-------------–


exp⋅=