Signal Processing - Study Mode

[#126] A data sequence x[n] = {1, 2, 3, 4, 5} passes through a linear time-invariant system with impulse response h[n] = {5, 4, 3, 2, 1}. The output of the filter will be
Correct Answer

(C) {5, 14, 26, 40, 55, 40, 26, 14, 5}

[#127] For a random variable 'x' having the probability density function (PDF) as shown in the above figure, what are the values of the mean and the variance, respectively?
Correct Answer

(B) 1 and $$frac{4}{3}$$

[#128] 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) $$frac{z}{{z - 5}}$$ xa0and the system is stable

[#129] For distortion less transmission through LTI system phase of H(ω) is
Correct Answer

(D) Linearly dependent on ω

[#130] The autocorrelation of wide-sense random process is given by e -2|τ| . The peak value of the spectral density is
Correct Answer

(B) 1