Let m(t) = 2 cos(1 000mt) + cos(2000mt) and p(t)s cos(2000t). Let ?(t) be m(t) AM modulated to 20000 Hz and B(t) be p(t) AM modulated to 30000 Hz. a. What are the powers of m(t) and p(t)? b. Show a(t) and draw its magnitude frequency spectrum. c. If ?(t) is demodulated by a carrier signal that is erroneously 18 degrees offset in phase ), then show the (i.e, instead of cos(oct) it is demodulated with cos(act+ demodulated signal. d. In part (c), find the signal power component along i (i.e., In Phase or along cos axis) and along Q (i.e, Quadrature Phase or along sin axis). This shows how much of the I signal has bled from l into the Q direction due to phase offset
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