Simulation of AE signals and signal analysis systems

Abstract A stochastic series is presented by which a typical AE signal detected by resonant transducer can be described. The series is then analysed numerically by a simulated system for AE amplitude distribution analysis. Comparison between the analytic distribution used in the generation of random series and the distribution obtained from the simulated system demonstrates how closely the measured parameter β corresponds to the parameter of source amplitude distribution b . The analysis shows that amplitude analysis gives better results when performed on ring-down bursts than on corresponding demodulated signals.