EE200_Weber_9-9

EE200_Weber_9-9 - EE 200 Spectrum of Sinusoids Signal is...

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Unformatted text preview: EE 200 Spectrum of Sinusoids Signal is the sum of a DC value and three sinusoids at different frequencies and with different phase shifts: x(t) = 4 + 5cos(600"t) + 3cos(800"t + "3 ) + 10cos(1100"t # " ) 4 ! 1 EE 200 Spectrum of Sinusoids Spectrum contains a DC element, and six sinusoids at +/- the three frequencies with complex amplitudes. x(t) = 4 + 5cos(600"t) + 3cos(800"t + " ) + 10cos(1100"t # " ) 3 4 5e j ! " 4 5e" j 3 2 # 4 e " j#3 2.5 4 2.5 3 2 e j"3 ! -500 ! -300 ! -100 ! 100 ! 300 500 f (Hz) ! ! 2 ...
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EE200_Weber_9-9 - EE 200 Spectrum of Sinusoids Signal is...

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