Signal Processing - Study Mode
[#311] A digital signal processing system is described by the expression: y(n) = 2x(n) + x(n - 1) + 2y(n - 1) The system is:
Correct Answer
(D) An unstable IIR filter
[#312] Consider the following system H(ejω) is a . . . . . . . . with band limited frequency . . . . . . . .
Correct Answer
(B) low pass filter, $$frac{pi }{3}$$
[#313] Using Z-transform method obtain impulse response of a system described by y(n) = 2.5y(n - 1) + x(n)
Correct Answer
(B) h(n) = (2.5) n u(n)
[#314] Which one of the following is the correct Laplace transfer of the signal in the given Figure?
Correct Answer
(B) $$frac{1}{{2{s^2}}}left[ {{e^{ - 2s}} - left( {1 - 2s}
ight)}
ight]$$
[#315] The correlation function of a wide-sense stationary random process representing a non-deterministic signal is
Correct Answer
(D) always deterministic and symmetric function