X(e j ω ) denotes the Fourier transform of the complex-valued signal x[n], where the real and imaginary parts of x[n] are given in Figure P2.44. (Note: The sequence is zero outside the interval shown.)
Perform the following calculations without explicitly evaluating X(ejω).
(d) Determine and sketch the signal (in the time domain) whose Fourier transform is X(e −jω).
(e) Determine and sketch the signal (in the time domain) whose Fourier transform is jIm{X(ejω)}.
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