Research on the Energy Characteristics of Battlefield Blasting Noise Based on Wavelet Packet

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Ding, Kai^1 ; Yan, Shoucheng^1 ; Zhu, Yichao^1 ; Zhao, Ming^1 ; Mei, Bi^2

Science and Technology On Near-Surface Detection Laboratory, Wuxi, China^1

School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, China^2

关键词: Acoustic signals;    Energy characteristics;    Noise signals;    Sample data;    Target recognition;    Vehicle targets;    Wavelet Packet;    Wavelet packet energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012100/pdf
DOI  :  10.1088/1757-899X/274/1/012100

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

When the acoustic fuse of smart landmines tries to detect and recognize a ground vehicle target, it is usually affected by gun shooting, explosive blasting or other similar noises on the actual battlefield. To improve the target recognition of smart landmines, it would be necessary to study the characteristics of these acoustic signals. Using sample data of the shooting noise of a certain type of rifle, the blasting noise of TNT, and the acoustic signals of a certain type of WAV, the energy characteristics of these noise signals are compared and analyzed. The result shows that the wavelet-packet energy method is effective in describing the characteristics of these acoustic signals with distinct intertype variations, and the frequency at the peak energy value can serve as a signature parameter for recognizing battlefield blasting noise signals from vehicle target signals.