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《Journal of Vibration and Shock》 2011-02
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Application of improved algorithms of P-wave complexity in nuclear explosion monitoring

HAN Shao-qing,SONG Zi-biao,WU Hai-jun(The Second Artillery Institute of Engineering,Xi'an 710025,China)  
The effectiveness of the traditional P-wave complexity in the discrimination between nuclear explosions and earthquakes was validated.Two improved algorithms of P-wave complexity in time domain were proposed and the recognition accuracy raised a little.The traditional computation of wave complexity was extended to time-frequency domain and a framework for computation of wave complexity based on short time Fourier transformation was given.After simplifing the framework,seismic wave features were extracted based on Fisher method.Classification test results showed that the proposed algorithms are better than the other existing algorithms.
【Fund】: 国家自然科学基金(60705001);; 中国博士后科学基金(20080430234);; 第二炮兵工程学院创新性探索研究基金项目
【CateGory Index】: TP274
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