Question
A message signal and the carrier signal are given as m(t) 2 0.5 viu + -2 m(t) c(t) = 2 cos 2710000t LPF fc=4KHz
![A message signal and the carrier signal are given as m(t) 2. T=1ms i-0,5 0.5 1t[ms] -2 c(t) = 2 cos 2710000t m(t) ka LPF fc](https://dsd5zvtm8ll6.cloudfront.net/si.experts.images/questions/2023/02/63fc3c31a03e6_1677474865250.jpg)
A message signal and the carrier signal are given as m(t) 2 0.5 viu + -2 m(t) c(t) = 2 cos 2710000t LPF fc=4KHz -0,5 Ka X c(t) + 1 SAM(t) T=1ms t[ms] a. Find m(t) signal after LPF (use Fourier series of m(t)) b. Find M(f) of the signal m(t) and plot the two side spectrum. What is the maximum value of k for no over modulation? C. d. Find AM signal S (1) for the signal m(t) . e. Find and sketch the two-sided spectrum of AM signal SAM (t). f. What is the transmission bandwidth? Determine the power on the carrier and sideband. h. Find the efficiency
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Communication Systems
Authors: Simon Haykin
4th Edition
978-0471697909, 471178691, 978-0471178699
