NyquistStabilityCriterion
Last edit October 29, 2009
Best to do some searches about this but here's a good site:
http://www.engr.udayton.edu/faculty/rkashani/mee527/nyq_stab/nyq_stability.htm
The Nyquist criterion is used to analyze a system's stability using frequency response methods. The
RouthHurwitzCriterion
(
http://www-me.mit.edu/Lectures/RLocus/2.12-rationale.html
) examines the characteristic polynomial.
A linear system is stable if and only if all the poles of the system
TransferFunction
have negative real parts.
ControllabilityAndObservability
for a system can be determined from its
TransferFunction
.
CategoryMath