In binary frequency shift keying (FSK), the given signal waveforms areu0(t) = 5cos(20000πt); 0 ≤ t ≤ 7 and u1(t) = 5cos(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 positivevalue of T (in milliseconds) required to have u0(t) and u1(t) uncorrelated is
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