Abstract: In various embodiment, a simulator includes an analysis module for extracting transmission-line parameters of a transmission-line system from a network-parameter representation thereof, using discontinuity-detection-based phase unwrapping without introducing artificial discontinuities, and a simulator module for simulating the response of the transmission-line system to an input based on the extracted transmission-line parameters.

Abstract: A system for performing a multiphysics simulation. The system includes a computing device, a database and a plurality of service proxy modules. The computing device includes a processor. The database is communicably connected to the processor and is associated with a plurality of data models. The plurality of service proxy modules are communicably connected to the processor. Each service proxy module is configured to extract at least a portion of the database for use by a service communicably connected thereto.

Abstract: A system. The system includes a computing device having a processor, and a causality checker module communicably connected to the processor. The causality checker module is configured to utilize a rational function approximation to a frequency response to determine if a transfer function of a linear time invariant system is causal.

Abstract: Disclosed are domain-decomposition approaches to simulations of electromagnetic fields may that, in various embodiments, use second-order Robin transmission conditions at subdomain boundaries.

Abstract: A simulator includes an analysis module for extracting a state-space model of response of a physical system to an input from a frequency-domain representation thereof, using a SVD, and singular vectors thereof, of a Loewner matrix derived from the frequency-domain representation, and a simulator module for simulating the response of the physical system in the time domain based on the extracted state-space model.

Abstract: A system for automatically generating a report from engineering data stored in a database is comprised of a user computer having a browser for requesting an HTML file. A web server generates the requested HTML based on Active Server Pages technology. The ASP file includes script for instantiating a component. The component, a dynamic link library, includes an automation hierarchy. The ASP page includes script for actively generating the report through interaction with the instantiated objects. The HTTP protocol connects the user computer and the web server.