UXO Detection Based on Terminal Ballistics Acoustic Signal Analysis of Aerodynamic Noise and Landing Sound

ZHANG Ya-hui;WANG Yu-long;LIU Hao-ting;LI Hong-kai;ZHU Wang-fei;YU Qin-lan

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2015, Vol. 36 ›› Issue (8) : 1525-1532. DOI: 10.3969/j.issn.1000-1093.2015.08.021
Paper

UXO Detection Based on Terminal Ballistics Acoustic Signal Analysis of Aerodynamic Noise and Landing Sound

  • ZHANG Ya-hui1, WANG Yu-long1, LIU Hao-ting2, LI Hong-kai1, ZHU Wang-fei1, YU Qin-lan1
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Abstract

For the location problem of unexploded ordnance (UXO)in the processes of conventional weapon test, military training and exercises, a low cost UXO detection method of the terminal ballistics is presented. According to the size of the impact area , many low cost acoustic sensors are installed in shooting range. The measuring range of these sensors covers the whole impact area. As for the signals of aerodynamic noise and the landing sound, which are captured by each acoustic sensor, the computation is implemented to used FFT and Laplace wavelet to denoise and enhance the original acoustic signal; use the short time energy, short time amplitude, and short time zero-crossing rate to detect the endpoint of these signals above; use the wavelet packet to collect the features of the enhanced signal; and use the minimized distance-based threshold criterion to identify the aerodynamic noise and the landing sound. The test results of UXO location in the shooting range show that the proposed technique can be used for UXO location and the location accuracy can reach 10 m.

Key words

ordnance science and technology / unexploded ordnance / endpoint detection / wavelet analysis / feature identification / acoustic location

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ZHANG Ya-hui, WANG Yu-long, LIU Hao-ting, LI Hong-kai, ZHU Wang-fei, YU Qin-lan. UXO Detection Based on Terminal Ballistics Acoustic Signal Analysis of Aerodynamic Noise and Landing Sound. Acta Armamentarii. 2015, 36(8): 1525-1532 https://doi.org/10.3969/j.issn.1000-1093.2015.08.021

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