FFT, FM with nonsinusoidal signal.
This applet shows a sinusoid at frequency w1
FM modulated by a signal at w2 which is not
a sinusoid. wd is the frequency deviation. In this case the frequency deviation rather than the modulation index is used. The modulation index is defined for a modulating signal containing one frequency while nonsinusoidal signals have more than one frequency in their spectrum.
Different modulating signals are seen as Fn is changed.
Return to main page
Return to page index
COPYRIGHT © 2007 Cuthbert Nyack.