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RE: need expert to help me in this en...

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2005-2006 » Archive through 26 August, 2006 » RE: need expert to help me in this engineering problem « Previous Next »

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Valued Member
Username: Sem_peng

Post Number: 12
Registered: 03-2006

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Votes: 0 (Vote!)

Posted on Thursday, 17 August, 2006 - 04:41 pm:   Edit Post Delete Post Print Post

Any expect can guide /explain how to draw the (ii). Part (i), I have solved. Only need part (ii). attached is the picture.
application/x-zip-compressed (1.5 k)

Same signal is applied to both inputs of a product modulator so that the inputs are:
V1 = V2 = Vin
Product modulator characteristic is:
Vout = 0.1V1V2
Input waveform is described by:
Vin = 12coswt-3cos3wt
(i) Deduce an expression for the output waveform in terms of its frequency components.
(ii) Draw the line amplitude spectrum of the output waveform.

Thank you.

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