Environmental Engineering Reference
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period of the pseudo-random number generator should be much larger
than simulation time, usually 10 times the simulation time.
6.2 The Algorithm
Numerical integration methods whose accuracy is sufficiently higher
than the amplitude of noise signals are needed for time domain noise
analysis. Conventional numerical integration methods that are based
on LMS-PC fail to provide the needed accuracy for noise analysis of
periodically switched linear circuits. It was shown earlier that sampled-
data simulation algorithm is an efficient and exact algorithm for time
domain analysis of linear circuits. In this section, we make use of this
algorithm to analyze the noise of periodically switched linear circuits.
Consider a periodically switched linear circuit with an input
and a set of white noise sources
In the time
interval
in phase
the time origin is set to
The
circuit in the time interval is depicted by
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