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What is modulation index and what are the equations for finding it?

What is modulation
index and what are the equations for finding it?

Grade:12

2 Answers

Vikas TU
14149 Points
7 years ago
modulation index is defined as the ratio of the peak voltages maximum to minimum
or ratio of higher voltage to lower voltage for any concerned signal taken such as voice signal sound signal etc.
Adarsh
733 Points
7 years ago
Modulation index (μ) is the ratio of amplitude of message signal (Am) to that of the carrier wave (Ac)
that is, μ = Am/Ac
                = ((Amax -Amin )/2)/((Amax +Amin )/2)
              = (Amax -Amin )/((Amax+ Amin ).
For better modulation μ ≤ 1.
Hope you understand my solution.
                 
 

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