A new method of transient acoustic pulse detection under the nonstationary noise background

According to the difficulty of transient pulse detection under the nonstationary noise background, based on the distributive characteristics of cepstrum signal in time domain, this paper proposes a new way of cepstrum-wavelet to detect transient pulse. It is verified with strict theoretical calculation. Simulation and trial data processing indicate that the probability of cepstrum-wavelet outperforms conventional energy detector and Power-law detection, especially in condition of extremely low SNR, conventional methods have yet invalidated, though this method can perform well all the same. It is important as a technical approach and theoretical evidence to the research of detecting acoustic transient pulse.