In practice, an analog multiplier is difficult and expansive for amplitude modul
ID: 1800358 • Letter: I
Question
In practice, an analog multiplier is difficult and expansive for amplitude modulators, it is necessary to find an alternative. An ideal sampler is cascaded with a BPF (Band pass filter). Find and sketch the Fourier transform of m(t). m(t) = 10 sin2 t Repeat a) for x(t) Repeat a for y(t). A message signal m(t) = 4 sin c 800t is input to the modulator in figure 2. There is a non-linear element y(t) = x(t) 0.5x3 (t) Find y(t). Find and sketch amplitude spectrum of y(t) Describe the filter that yields a conventional AM for g(t). Give filter type and frequencies interest (center frequency, cut off, bandwidth). A message signal m(t) = 4 sin c 800t is input to the modulator in figure 2. There is a non-linear element y(t) = x(t) 0.5x3 (t) Find y(t). Find and sketch amplitude spectrum of y(t) Describe the filter that yields a conventional AM for g(t). Give filter type and frequencies interest (center frequency, cut off, bandwidth).Explanation / Answer
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