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If the spectrum of a narrow band noise is symmetrical and it has a power density spectrum 4×10-6. Power density of quadrature component is ________(a) 2 x 10^-6(b) 5 x 10^-6(c) 3 x 10^-6(d) 4 x 10^-6I got this question in homework.The above asked question is from Modulation Using Non-Linear Devices (Balanced Modulator) topic in section Amplitude Modulation of Analog Communications

Answer» CORRECT option is (a) 2 x 10^-6

For explanation: POWER density is the amount of power per unit volume. Quadrature COMPONENT is a amplitude modulated sinusoid which is OFFSET in phase by one QUARTER cycle.

Power density of quadrature component is


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