In the system in Figure E-13
and let the lowpass filter (LPF) be ideal with a frequency response magnitude of one in its passband.
(a) Find the signal power of yt(t).
(b) Find the signal power of yd(t).
(c) Find the signal power of yf(t) if the cutoff frequency of the LPF is 1 kHz.
(d) Find the signal power of yf(t) if the cutoff frequency of the LPF is 100 Hz.
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