要用MATLAB寫作業
Consider a binary data stream that consists of a square wave ,the amplitude of
which alternates between the constant levels Eb(開更號b是在右下角小小的)and
zero every Tb(b一樣是在右下角 小小的)seconds.The square wave is centered on
the origin for convenience of the presentation .The objective of the exper-iment is
twof-old:
1.TO investigate the effect of varying the carrier frequency fc(c是小小的f是草寫)
om the power spectrum of the BASK sinal s(t), assuming that the square
wave is fixed.recall that the power spectrum of a signal(expressed in decibels)
is defined as 10 times the logarithm(to base 10)of the squared magnitude
(amplitude)spectrum of the signal.
2.TO investigate the effect of varying the frequency of the square wave on the
spectrum of the BASK signal,assuming that the sinusoidal carrier wave is
fixed.
題目是這樣!