Singular Control Systems
Algebraic Characterizations for Positive Realness of Descriptor Systems
SIAM Journal on Matrix Analysis and Applications
GHM: a generalized Hamiltonian method for passivity test of impedance/admittance descriptor systems
Proceedings of the 2009 International Conference on Computer-Aided Design
PRIMA: passive reduced-order interconnect macromodeling algorithm
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
An efficient projector-based passivity test for descriptor systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Proceedings of the 16th Asia and South Pacific Design Automation Conference
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
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A generalized Hamiltonian method (GHM) and its half-size variant (HGHM) are proposed to characterize the spectral behaviors of descriptor systems (DSs). With the preprocess improper part test, GHM and HGHM can be applied to test the passivity of immittance (impedance or admittance) DSs without system decomposition, system index assumption, or minimal realization requirement, which are the major bottlenecks of existing algebraic DS passivity tests. The proposed method allows exact detection of nonpassive frequency intervals, which is not possible with frequency-sweeping techniques. Numerical results confirm the effectiveness of the proposed methods.