Find the spectra of the following vibrations: 1) f(t) = Acos2wt (quadratic transformation of a monochromatic signal); 2) f(t) = A(1 + mcosWt)coswt at W w, m 1 (amplitude modulation); 3) f(t) = Acos[wt + mcosWt] at W w, m 1 (phase modulation).
Answer. Format gif
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