Electronics and Communication Engineering - Signals and Systems

31.
The inverse response of a system h(n) = an∪(n) what is the condition for the system to be BIBO stable?
a is real and +ve
a is real and -ve
|a| > 1
|a| < 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
A system has poles at 0.01 Hz, 1 Hz and 80 Hz, zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is
-90°
90°
-180°
Answer: Option
Explanation:
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33.
Fourier transform of sgn (t) is
U(t)
2δ(ω)
Answer: Option
Explanation:
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34.
If the number of ways an event may result ins analysed into m successes and n failures, each equally likely to occur, the probability of success in a single trial is m( m + n)
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
If n is the number of observations and r is the residue, the standard deviation σ =
Answer: Option
Explanation:
No answer description is available. Let's discuss.