Signal Processing - Study Mode
[#246] A periodic function of half-wave symmetry is necessarily
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(D) both odd and even
[#247] The Laplace transformation of a doublet is:
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(A) s
[#248] A system is defined by its impulse response h(n) = 2 n u(n - 2). The system is
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(B) Causal but not stable
[#249] A discrete time linear shift-invariant system has an impulse response h[n] with h[0] = 1, h[1] = -1, h[2] = 2, and zero otherwise. The system is given an input sequence x[n] with x[0] = x[2] = 1 and zero otherwise. The number of nonzero samples in the output sequence y[n], and the value of y[2] are, respectively
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(A) 5, 2
[#250] If the impulse response of a discrete-time system is h[n] = -5 n u[- n - 1], then the system function H(z) is equal to
Correct Answer
(B) $${z over {z - 5}}$$xa0 and the system is stable