A linear system has the transfer function $$H\left( {j\omega } \right) = \frac{1}{{\left( {j\omega + 1} \right)}}$$
When it is subjected to an input white noise process with a constant spectral density 'A', the spectral density of the output
A. $$\frac{A}{{\left( {j\omega + 1} \right)}}$$
B. $$\frac{A}{{{{\left( {j\omega + 1} \right)}^2}}}$$
C. $$\frac{A}{{\left( {{\omega ^2} + 1} \right)}}$$
D. $$\frac{A}{{\sqrt {\left( {j\omega + 1} \right)} }}$$
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Signal Processing
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