engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Fast Fourier Transform (FFT)
Let H(z) be the z-transform of a real-valued discrete-time signal h[n]. If \(P\left( z \right) = H\left( z \right)H\left( {\frac{1}{z}} \right)\) has a zero at \(z = \frac{1}{2} + \frac{1}{2}j\), and P(z) has a total of four zeros, which one of the following plots represents all the zeros correctly?
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