Make a labeled sketch of the fourier transform (a-g) Consider the following bloc

Question

Make a labeled sketch of the fourier transform (a-g)

Consider the following block diagram. In the above diagram, each LPF is ideal with a cutoff frequency of omega m/2, and omega c >> omega m. Suppose the Fourier transform of the input is real-valued and given by the graph: We have often used triangles as "placeholders" for more general bandlimited Fourier transforms. That is not the case in this problem: X(j omega) is really a triangle! Make a labeled sketch of the Fourier transform of x(t) cos(omega mt/2). Make a labeled sketch of the Fourier transform of the output of the LPF at the top of the diagram. Make a labeled sketch of the Fourier transform of the signal coming into the adder from the top. Make a labeled sketch of the Fourier transform of x(t)sin (omega mt/2). You can use "j" labels in your sketch. Make a labeled sketch of the Fourier transform of the output of the LPF at the bottom of the diagram. You can use "j" labels in your sketch. Make a labeled sketch of the Fourier transform of the signal coming into the adder from the bottom. Finally, make a labeled sketch of Y (J omega).

Explanation / Answer

Hi,

There was an error with uploading the images. I am giving you the links. Do rate :)

Part(a,b,c)

https://drive.google.com/file/d/0BzsApW5yffhsOWhzNmlwUFJVX2M/edit?usp=sharing

Part(d,e,f)

https://drive.google.com/file/d/0BzsApW5yffhsXzk5VktseWxNbGs/edit?usp=sharing

Part(g)

https://drive.google.com/file/d/0BzsApW5yffhsbVZXWGhCWGlYWGc/edit?usp=sharing

Let me know if you have any doubts.

Cheers,

Saurav

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