Signal Processing - Study Mode

[#166] The final value theorem is
Correct Answer

(A) $$mathop {lim }limits_{k o infty } xleft( k ight) = mathop {lim }limits_{z o 1} left( {z - 1} ight){X^ + }left( z ight)$$

[#167] The auto correlation of a wide-sense stationary random process is given by e -2|τ| . The peak value of the spectral density is
Correct Answer

(B) 1

[#168] Consider a continuous time system A, modelled by the equation y(t) = t.x(t) + 4 and a discrete time system B modelled by the equation y[n] = x 2 [n]. These systems are
Correct Answer

(B) A-time varying and B-time invariant

[#169] If the step response of an initially relaxed circuit is known, then the ramp response can be obtained by
Correct Answer

(A) Integrating the step response

[#170] Laplace transform of e -at f(t) is
Correct Answer

(C) F(s + a)