Digital Communications Interview Experienced Online Exam Quiz
Digital Communications Interview Experienced GK Quiz. Question and Answers related to Digital Communications Interview Experienced. MCQ (Multiple Choice Questions with answers about Digital Communications Interview Experienced
Optimum threshold value is given by
Options
A : a0+a1/2
B : a0-a1/2
C : a0/2
D : a1/2
Example for antipodal bandpass signaling is
Options
A : BPSK
B : ASK
C : FSK
D : MSK
The symbol of the probability under the tail of Gaussian pdf is called as
Options
A : Complementary error function
B : Co error function
C : Complementary error & Co error function
D : None of the mentioned
The impulse response of the filter is the ________ of the mirror image of the signal waveform.
Options
A : Delayed version
B : Same version
C : Delayed & Same version
D : None of the mentioned
An error in binary decision making occurs when the channel noise is
Options
A : Greater than the optimum threshold level
B : Lesser than the optimum threshold level
C : Greater or Lesser than the optimum threshold level
D : None of the mentioned
According to the rule of minimizing the error probabilities, the hypothesis should be like if the priori probabilities are ________ than the ratio of likelihoods.
Options
A : Lesser
B : Greater
C : Equal
D : None of the mentioned
The likelihood ratio test is done between
Options
A : Likelihood of s1 by likelihood of s2
B : Likelihood of s2 by likelihood of s1
C : Likelihood of s1 by likelihood of s1
D : None of the mentioned
For a M-ary signal or symbol the number of likelihood functions are
Options
A : M
B : M+1
C : M-1
D : 2M
Matched filter provides _____ signal to noise ratio.
Options
A : Maximum
B : Minimum
C : Zero
D : Infinity
The detector that minimizes the error probability is called as
Options
A : Maximum likelihood detector
B : Minimum likelihood detector
C : Maximum & Minimum likelihood detector
D : None of the mentioned
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