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ZHANG Zhong-min, LI Ke-jie, LI Gui-tao, SHANG Ya-ling. Feature Extraction of Acoustic/Seismic Signal of Target[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2000, 9(3): 312-317.
Citation: ZHANG Zhong-min, LI Ke-jie, LI Gui-tao, SHANG Ya-ling. Feature Extraction of Acoustic/Seismic Signal of Target[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2000, 9(3): 312-317.

Feature Extraction of Acoustic/Seismic Signal of Target

Funds:National 9thFiveYearAdvancedResearchProject
  • Received Date:1999-10-23
  • A microphone and a seismic sensor always become a basic unit of UGS(unattended ground sensors) system. The mechanism of acoustic and seismic property of target and its propagation are described. The acoustic and seismic signals of targets are analyzed with time frequency distribution according to its non stationary property. Narrow band energy function (NEF) and local power spectral density (LPSD) are proposed to extract features for target identification. Experiment results show that local power spectral density indicates corresponding target clearly.
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