In binary frequency shift keying (FSK), the given signal waveforms are
u0(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 positive
value of T (in milliseconds) required to have u0(t) and u1(t) uncorrelated is
A. 0.25 ms
B. 0.5 ms
C. 0.75 ms
D. 1.0 ms
Answer: Option B
Related Questions on Digital Communication
A. Only 800 Hz component
B. 800 Hz and 900 Hz components
C. 800 Hz and 1000 Hz components
D. 800 Hz, 900 Hz and 100 Hz components
Increased pulse width in the flat top sampling, leads to
A. Attenuation of high frequencies in reproduction
B. Attenuation of low frequencies in reproduction
C. Greater aliasing errors in reproduction.
D. No harmful effects in reproduction
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