Amplitude Modulation AM Mathematical Derivation October 3 2018 September 17 2020 Gopal Krishna 8425 Views 0 Comments AM amplitude modulation mathematical analysis. The equation for instantaneous frequency f_i in FM modulation is f_if_ck_fmleft t right Where f_c is the carrier frequency k_t is the frequency sensitivity mleft t right is the message signal. The simplest interpretation of the modulation index b is as a measure of the peak frequency deviation D f.
Let the carrier frequency be f c.
XF M t sin10 106 2pt cos1 106 2pt x F M t sin. B D ff m where f m is the maximum modulating frequency used. Modulation Index v 25. To make the formula more clear lets substitute the function sawx Fmx - floorFmx.