Question: A noise process has a power spectral density given by Sn ( f ) = 1 0 8 1 | f | 1 0 8

A noise process has a power spectral density given by Sn( f )=1081| f |108| f |<1080| f |>108 This noise is passed through an ideal bandpass filter with a bandwidth of 2 MHz centered at 50 MHz.1. Find the power content of the output process. 2. Write the output process in terms of the in-phase and quadrature components, and find the power in each component. Assume f0=50 MHz.3. Find the power spectral density of the in-phase and quadrature components. 4. Now assume that the filter is not an ideal filter and is described by |H( f )|2=| f |1064949 MHz <| f |<51 MHz 0 otherwise Repeat parts 1,2, and 3 with this assumption.

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