GATE Electronics and Communications (EC) 2017 Shift 1 Solved Paper
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Question : 60 of 65
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In binary frequency shift keying (FSK), the given signal waveforms are
u0(t) = 5 cos(20000πt); 0 ≤ t ≤ T, and
u1(t) = 5 cos(22000πt); 0 ≤ t ≤ T
where T is the bit-duration interval and t is in seconds. Both u0(t) and u1(t) are zero outside the interval 0 ≤ t ≤ T. With a matched filter (correlator) based receiver, the smallest positive value of T (in milliseconds) required to have u0(t) and u1(t) uncorrelated is
u0(t) = 5 cos(20000πt); 0 ≤ t ≤ T, and
u1(t) = 5 cos(22000πt); 0 ≤ t ≤ T
where T is the bit-duration interval and t is in seconds. Both u0(t) and u1(t) are zero outside the interval 0 ≤ t ≤ T. With a matched filter (correlator) based receiver, the smallest positive value of T (in milliseconds) required to have u0(t) and u1(t) uncorrelated is
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