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(Solved): Find the inverse DTFT of the rectangular pulse spectrum \( F(\Omega)=\operatorname{rect}\left(\fra ...
Find the inverse DTFT of the rectangular pulse spectrum \( F(\Omega)=\operatorname{rect}\left(\frac{\Omega}{2 \Omega_{c}}\right) \) with \( \Omega_{c}=\frac{\pi}{4} \) and repeating at the intervals of \( 2 \pi \), as shown in Figure 2.