General expression for a DSB-AM modulated signal

[olimain]

Hi, a quick and easy one I hope someone can help me with.

What would be the general expression for a DSB-AM modulated signal in terms of the Carrier Signal C(t), Baseband Signal S(t) and the modulation index m?

Many Thanks

 

[Ouabache]

I wonder what kind of expressions, have thought of thus far?

I would use your Communication Engineering textbook and look up under the modulation scheme you described. They document those expressions very well. If you don't have this text, just go to your nearest engineering school library and take a look thru their communication engineering texts.