FFT, FM with nonsinusoidal signal.

Cuthbert Nyack
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.

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COPYRIGHT 2007 Cuthbert Nyack.