Envelope detector consists of(a) Rectifier and high pass filter(b) Rectifier and low pass filter(c) Amplifier and low pass filter(d) Amplifier and high pass filterThis question was posed to me in an online quiz.I would like to ask this question from Coherent Detection in portion Bandpass Modulation and Detection of Digital Communications

Envelope detector consists of(a) Rectifier and high pass filter(b) Rec

1.	Envelope detector consists of(a) Rectifier and high pass filter(b) Rectifier and low pass filter(c) Amplifier and low pass filter(d) Amplifier and high pass filterThis question was posed to me in an online quiz.I would like to ask this question from Coherent Detection in portion Bandpass Modulation and Detection of Digital Communications
Answer» Right choice is (B) Rectifier and LOW pass filter The EXPLANATION: An envelope detector consists of a rectifier and a low pass filter. The detectors are MATCHED to the envelopes and not to the SIGNAL themselves.

Discussion

No Comment Found

Related InterviewSolutions

In differential encoding the _________ different between two wave forms is measured.(a) Magnitude(b) Frequency(c) Phase(d) Time periodThis question was addressed to me in an internship interview.My query is from Coherent Detection topic in division Bandpass Modulation and Detection of Digital Communications
Matched filter is used for(a) Coherent detection(b) Non coherent detection(c) Coherent & Non coherent detection(d) None of the mentionedThe question was asked by my college director while I was bunking the class.This key question is from Coherent Detection topic in section Bandpass Modulation and Detection of Digital Communications
As limit of k increases, the ratio of PB/PE becomes(a) 1:2(b) 2:1(c) 1:3(d) 3:1This question was posed to me in final exam.This key question is from M-ary Signalling and Performance topic in portion Bandpass Modulation and Detection of Digital Communications
The relation between the probability of bit error and probability of symbol error in M-ary orthogonal signalling is(a) M/M-1(b) 2M/M-1(c) (M/2)/M-1(d) M/M+1The question was asked by my college professor while I was bunking the class.Question is taken from M-ary Signalling and Performance in division Bandpass Modulation and Detection of Digital Communications
Energy per symbol Es is given as(a) Es=Eb(log2M)(b) Es=Eb/(log2M)(c) Es=2Eb(log2M)(d) Es=Eb/2(log2M)This question was addressed to me in an interview.I'd like to ask this question from M-ary Signalling and Performance topic in division Bandpass Modulation and Detection of Digital Communications
For FSK signalling, WT is equal to(a) 0(b) 1(c) 0.737(d) InfinityThe question was posed to me in class test.Origin of the question is M-ary Signalling and Performance in portion Bandpass Modulation and Detection of Digital Communications
In orthogonal signalling with symbols containing more number of bits we need ____ power.(a) More(b) Less(c) Double(d) None of the mentionedI got this question in class test.I would like to ask this question from M-ary Signalling and Performance topic in division Bandpass Modulation and Detection of Digital Communications
In MPSK adding new signals _______ make it vulnerable to noise and in MFSK _______ make it vulnerable.(a) Does, does not(b) Does not, does(c) Does, does(d) Does not, does notThe question was posed to me in an online quiz.The query is from M-ary Signalling and Performance in portion Bandpass Modulation and Detection of Digital Communications
The error performance of MPSK ______ as M or k increases.(a) Increases(b) Decreases(c) Stays constant(d) None of the mentionedThe question was posed to me in a job interview.This key question is from M-ary Signalling and Performance in section Bandpass Modulation and Detection of Digital Communications
In which system, bit stream is portioned into even and odd stream?(a) BPSK(b) MSK(c) QPSK(d) FSKI got this question during an interview.My question comes from M-ary Signalling and Performance in division Bandpass Modulation and Detection of Digital Communications

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment