How to determine and draw AM and FM phasor diagrams?

[Indian]

pls post how to determine and draw am and fm phasor diagrams

 

[electronics_kumar]

plot phasor diagrams

in AM method since only amplitude is going to be varied ,the resultant phasor diagram is same as that of carrier before modulation

 

[Naveed Alam]

phasor diagram of fm

in matlab plot...suppose ur fm and ab signals are fm_signal and am_signal

%plot fm
Tx_phase_P = angle(fm_signal);
Tx_mag_P = 1;
polar(Tx_phase_P, Tx_mag_P,'bd');
title('fm plot')

%plot am
Tx_phase_P = angle(am_signal);
Tx_mag_P = abs(am_signal);
polar(Tx_phase_P, Tx_mag_P,'bd');
title('am plot')