Title :
Error estimation of reduced-order modeling of high speed RLCG circuit
Author :
Lu, Ninglong ; Hajj, Ibrahim N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
In this paper, we show that perturbations in pole valves in reduced-order modeling of RLCG circuits play a crucial role in the accuracy of time-domain simulation. We first derive a simple formula that expresses the error accumulation in the time domain as a function of the simulation time and perturbation of the pole values. Then, a posteriori error bound estimation of the poles generated by any modal-reduction method is provided by using a novel time-domain transformation on the state equations of the circuit. The error bounds are then employed to control the time-domain error in the reduced-order model, and to guarantee that the time-domain simulation is accurate
Keywords :
circuit analysis computing; error analysis; linear network analysis; poles and zeros; time-domain analysis; RLCG circuits; a posteriori error bound pole estimation; circuit state equations; error bounds; error estimation; high speed RLCG circuit; linear circuits; modal-reduction method; pole value perturbations; reduced-order modeling; simulation time; time domain error accumulation; time-domain error; time-domain simulation; time-domain simulation accuracy; time-domain transformation; Analytical models; Circuit simulation; Computer simulation; Error analysis; Error correction; Linear circuits; RLC circuits; Reduced order systems; State estimation; Time domain analysis;
Conference_Titel :
IC/Package Design Integration, 1998. Proceedings. 1998 IEEE Symposium on
Conference_Location :
Santa Cruz, CA
Print_ISBN :
0-8186-8433-X
DOI :
10.1109/IPDI.1998.663647
