Q5. The message signal m(t), whose frequency spectrum is shown in the following figure. m(t) is...
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Q5. The message signal m(t), whose frequency spectrum is shown in the following figure. m(t) is the input of the given block diagram where y, (t) = x(t) + x³ (t). The bandpass filter has a bandwidth of 2W centered at 2fo- cos (4nfot) m(t) x(t) Nonlinear Y2(t) Bandpass filter Lowpass f Iter device cos (2πήt ) M(f)4 -W W f a) Plot the frequency spectrum of the signals x(t), y1(t), y2(t) and y3(t). b) Determine the bandwidths of the signals x(t), y1(t), y2(t) and y3(t). c) Determine the cut-off frequency and amplitude of ideal low-pass filter to show m(t) signal at the output of the block diagram. Q5. The message signal m(t), whose frequency spectrum is shown in the following figure. m(t) is the input of the given block diagram where y, (t) = x(t) + x³ (t). The bandpass filter has a bandwidth of 2W centered at 2fo- cos (4nfot) m(t) x(t) Nonlinear Y2(t) Bandpass filter Lowpass f Iter device cos (2πήt ) M(f)4 -W W f a) Plot the frequency spectrum of the signals x(t), y1(t), y2(t) and y3(t). b) Determine the bandwidths of the signals x(t), y1(t), y2(t) and y3(t). c) Determine the cut-off frequency and amplitude of ideal low-pass filter to show m(t) signal at the output of the block diagram.
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