Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

The carrier wave is given by C(t) = 2sin(8πt) volt. The modulating signal is a square wave as shown. Find modulation index.



Modulation index (μ) is the ratio of the amplitude of the modulating signal to the amplitude of the carrier wave. The generalised equation of a carrier wave is given below: c(t) =Acsinωct The generalised equation of a modulating wave is given below: cm(t)=Acsinωct+μAcsinωmtsinωct Here, μ is defined as AmAc. On comparing this with the equations of carrier wave and modulating wave, we get: Amplitude of modulating signal, Am=1 V Amplitude of carrier wave, Ac=2 V ∴ μ=AmAc=12=0.5
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts