Consider a filter with frequency response or a sinc function in frequency. (a) Find the impulse response

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Consider a filter with frequency response

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or a sinc function in frequency.

(a) Find the impulse response h(t) of this filter. Plot it and indicate whether this filter is a causal system or not.

(b) Suppose you wish to obtain a band-pass filter G(j?) from H(j?). If the desired center frequency of |G(j?)|is 5, and its desired magnitude is 1 at the center frequency, how would you process h(t) to get the desired filter? Explain your procedure.

(c) Use symbolic MATLAB to find h(t), g(t) and G(j?). Plot |H(j?)|, h(t), g(t), and |G(j?)|. Compute the Fourier transform using the integration function.

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