Signal Processing - Study Mode
[#206] For separating channels in FDM receivers
Correct Answer
(A) Band pass filters are used
[#207] The probability cumulative distribution function must be monotone and
Correct Answer
(D) non-decreasing
[#208] Given that x 1 (t) = e k 1 t u(t) and x 2 (t) = e -k 2 t u(t). Which one of the following gives their convolution?
Correct Answer
(A) $$frac{{left[ {{e^{{k_1}t}} - {e^{ - {k_2}t}}}
ight]}}{{left[ {{k_1} + {k_2}}
ight]}}$$
[#209] What is the magnitude square function of a normalized Butterworth filter to 1 rad/sec cut-off frequency as
Correct Answer
(A) $$frac{1}{{1 + {{left( Omega
ight)}^{2{ ext{N}}}}}}$$
[#210] If F(s) and G(s) are the Laplace transform of f(t) and g(t), then their product F(s).G(s) = H(s), where H(s) is the Laplace transform of h(t), is defined as
Correct Answer
(B) $$int_0^{ ext{t}} {{ ext{f}}left( au
ight){ ext{g}}left( {{ ext{t}} - au }
ight){ ext{d}} au } $$