Publication No. 980935 Rev. A
3152B User Manual
Figure 4-41, Using Equation Editor to Build Amplitude Modulated Signal
with Sidebands
Combining
Waveforms
The last feature to be described here allows you to combine
waveforms which were previously stored in a file. You can write
mathematical expressions that contain waveforms, simple
operands, and trigonometric functions similar to the example given
below. If you want to use stored waveforms in your equations, you
must first generate these and store them in files. If you have stored
files named Sine.wav and Noise.wav in the Wav12bit folder, you
can enter them into your equation as shown.
Amplitude(p)=
Sine.wav*sin(omg*p*10)+Noise.wav/1000
The above equation generates an amplitude modulated waveform
with added noise. Note: You can also browse for .wav files stored in
any folder using the Insert Wave button in the Equation Editor
dialog box.
The following steps demonstrate how to create, store and combine
waveforms using this example.
Step 1
– Create and store Sine.wav. Invoke the Wave command
and generate a sine waveform. Press OK and then select the Save
Waveform As… from the File command. Save this file into the
default folder using the name Sine.wav in the default folder.
Step 2
– Create and store Noise.wav. From the Wave command
select Noise. Click OK and watch your waveform screen draw a
EADS North America Test and Services
ArbConnection 4-55
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com