A method of modeling a vehicle crash waveform to generate an infinite set of crash waveforms comprises breaking down a predetermined crash waveform into a crash pulse (signal of interest) and multiplicative noise signal. The multiplicative noise signal is then statistically characterized as a function...http://www.google.com.hk/patents/US5251161?utm_source=gb-gplus-share專利 US5251161 - Method of generating model crash waveforms for testing vehicle crash detection systems