8.9     QProny

The  button in Simulation tab and Postprocessings->S-Parameters with QProny... command from main menu invoke S-Parameters dialogue with settings for S-Parameters post-processing using QProny module.

Apply Prony method settings refer to the optional QProny software module and can be used together with S-Parameters post-processing. Basically, it reduces the computing time for circuits with sharp features in the frequency domain, such as narrow band pass filters. This is achieved by supplementing the Fourier transform calculations (naturally following time-domain evolution of signals which are physically slow in high-Q cases) with a digital signal processing by Generalised Pencil of Function Method. It allows one to extract the essential features of time signature based on the analysis of time samples obtained at the initial simulation phase. For details, consult a separate QProny manual.