Racal Instruments 3156B, Руководство пользователя

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3156B User Manual
WaveCAD 4-58 Racal Instrument © 2005
Figure 4-30 Using the Equation Editor to Generate Exponentially Decaying Sinewave
The last example as shown in Figure 4-31 is the most complex to be
discussed here. Here, 100 cycles of sinewave are amplitude
modulated with 10 cycles of sine wave with a modulation depth of
20%. To achieve this, the upper and lower sidebands are defined
separately and added to the fundamental or carrier. The upper
sideband is produced by the expression 100*cos(110*omg*p) and the
lower sideband by the term 100*cos(90*omg*p).
Use the following equation:
Ampl(p)=20000*sin(100*omg*p)+4000*cos(110*omg*p)-
4000*cos(90*omg*p)
Press [Preview]. Your screen should look like Figure 4-31.