Rules For Handmade Bode Plot
The premise of a Bode plot is that one can consider the log of a function in the form:
as a sum of the logs of its poles and zeros:
This idea is used explicitly in the method for drawing phase diagrams. The method for drawing amplitude plots implicitly uses this idea, but since the log of the amplitude of each pole or zero always starts at zero and only has one asymptote change (the straight lines), the method can be simplified.
Read more about this topic: Bode Plot
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