Related InterviewSolutions

• Which is the main system consideration?(a) Probability of error(b) System complexity(c) Random fading channel(d) All of the mentionedThe question was asked by my school teacher while I was bunking the class.The above asked question is from Equalization and Non Coherent Detection topic in chapter Baseband Demodulation and Detection of Digital Communications
• Which is easier to implement and is preferred?(a) Coherent system(b) Non coherent system(c) Coherent & Non coherent system(d) None of the mentionedThis question was addressed to me in an interview for internship.My question is based upon Equalization and Non Coherent Detection in portion Baseband Demodulation and Detection of Digital Communications
• Coherent PSK and non coherent orthogonal FSK have a difference of ______ in PB.(a) 1db(b) 3db(c) 4db(d) 6dbI have been asked this question during a job interview.Enquiry is from Equalization and Non Coherent Detection topic in portion Baseband Demodulation and Detection of Digital Communications
• The DPSK needs ________ Eb/N0 than BPSK.(a) 1db more(b) 1db less(c) 3db more(d) 3db lessThe question was posed to me during a job interview.My doubt stems from Equalization and Non Coherent Detection in portion Baseband Demodulation and Detection of Digital Communications
• The non coherent FSK needs ________ Eb/N0 than coherent FSK.(a) 1db more(b) 1db less(c) 3db more(d) 3db lessThe question was asked in a national level competition.The doubt is from Equalization and Non Coherent Detection in chapter Baseband Demodulation and Detection of Digital Communications
• A Gaussian distribution into the non linear envelope detector yields(a) Rayleigh distribution(b) Normal distribution(c) Poisson distribution(d) Binary distributionThe question was posed to me in class test.I want to ask this question from Equalization and Non Coherent Detection topic in portion Baseband Demodulation and Detection of Digital Communications
• Performance of BFSK signal is ________ than BPSK.(a) 3db worse(b) 3db better(c) 6db worse(d) 6db betterI got this question in homework.The doubt is from Equalization and Non Coherent Detection in division Baseband Demodulation and Detection of Digital Communications
• For AWGN, the noise variance is(a) N0(b) N0/2(c) 2N0(d) N0/4I got this question during an interview.The origin of the question is Equalization and Non Coherent Detection in chapter Baseband Demodulation and Detection of Digital Communications
• The disadvantage of preset equalizer is that(a) It doesnot requires initial training pulse(b) Time varying channel degrades the performance of the system(c) All of the mentioned(d) None of the mentionedThis question was posed to me in an interview for internship.This key question is from Equalization and Non Coherent Detection in division Baseband Demodulation and Detection of Digital Communications
• If the filter’s tap weight remains fixed during transmission of data, then the equalization is called as(a) Preset equalization(b) Adaptive equalization(c) Fixed equalization(d) None of the mentionedThis question was addressed to me by my school teacher while I was bunking the class.Question is taken from Equalization and Non Coherent Detection topic in portion Baseband Demodulation and Detection of Digital Communications