jfyan
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hi all:
a pm-modulate siganl,e.g x(t)=a*sin(wc*t+Asinwm*t), if i want to extract Asinwm*t, how can do in spectre? one approximate way is to look at the zero crossing times of the x(t) and compared in with the carrier signal, but i don't know how to write down the zero crossing time points in spetre, so need you help!
thanks in advance
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