Environmental Engineering Reference
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circuit due to the noise source, as shown graphically in Fig.6.5.
is
obtained from
where is the power spectral density of the noise source and is
the equivalent noise bandwidth of the circuit. For white noise whose
power spectral sensitivity is independent of frequency, the equivalent
noise bandwidth, as shown in Fig.6.6, is determined from [2],
where is the transfer function from the white noise source to the
output of the circuit. For circuits whose frequency behavior is charac-
terized using the single-pole system with the pole at
we have
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