Abstract: To resolve transient response of the pole coupling parameter extraction problems from strong electromagnetic pulse, the traditional matrix pencil algorithm has been improved. Preprocessing the noisy transient response with inter-related processing method can effectively improve the extraction accuracy under low signal-to-noise ratio(SNR). The data are constructed as Hankle matrix after discretization, combined with singular value decomposition, for solving the generalized eigenvalue. Then, the signal poles parameter information can be extracted. It is verified that the improved algorithm has strong anti-noise ability and high fit through simulation analysis and reconstruction of the waveform.