(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Calculate the noise equivalent bandwidth of the amplifier.

2. Relevant equations

A(f) = transfer function of the amplifier

B = (1/S(fo) )* Integral over all values of S(f)

3. The attempt at a solution

Ok we're given the integral of |A(f)| but im not sure how to go from that to a power spectral density function, because thats what S(f) is isnt it? Initially i used A(f) as S(f), which im pretty sure is wrong, but it worked in proving the approximation that B = A^2 fc for some charactaristic frequency fc. In this case i simply used S(fo) as A and the intergral as the one given.

I think that assumptions wrong but i don't know how to fix it :(

Thanks

-G

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# Homework Help: Power Spectral Density problem

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