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ECE :: Signals and Systems

  1. For a Gaussian process, auto-correlation sequence also implies that

  2. A.
    statistical independence
    B.
    statistical dependence
    C.
    ergodic process
    D.
    all

  3. Which one of the following is correct? Energy of a power signal is

  4. A.
    finite
    B.
    zero
    C.
    infinite
    D.
    between 1 and 2

  5. The energy associated with a function f(t) is
    . In terms of Fourier transform, E =


  6. Assertion (A): The function kest with both σ and ω positive and s > 0 depicts a sinusoid whose amplitude increases with time.

    Reason (R): If σ = 0, kest becomes a sinusoid.

  7. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R are correct but R is not correct explanation of A
    C.
    A is true, R is false
    D.
    A is false, R is true