The two signal waveforms for binary FSK signal transmission with discontinuous phase are
where ?f = 1/T c, and θ0 and θ1 are independent uniformly distributed random variables on the interval (0, 2π). The signals s0(t) and s1(t) are equally probable.
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1. Determine the power spectral density of the FSK signal.
2. Show that the power spectral density decays as 1/f2 for f c.