ZHANG Shuang-feng, LI Xue-ying, WANG Cheng-liang, MIAO Ju-ling. THE APPLICATION OF GRAY SYSTEM AND THE PERIODICAL ERROR SUPERPOSITION MODEL IN THE RECOGNITION OF SEISMIC ANOMALY[J]. North China Earthquake Sciences, 2004, 22(1): 38-41.
Citation: ZHANG Shuang-feng, LI Xue-ying, WANG Cheng-liang, MIAO Ju-ling. THE APPLICATION OF GRAY SYSTEM AND THE PERIODICAL ERROR SUPERPOSITION MODEL IN THE RECOGNITION OF SEISMIC ANOMALY[J]. North China Earthquake Sciences, 2004, 22(1): 38-41.
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THE APPLICATION OF GRAY SYSTEM AND THE PERIODICAL ERROR SUPERPOSITION MODEL IN THE RECOGNITION OF SEISMIC ANOMALY

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  • the application to recognize seismic anomaly with gray system and periodical error superposition mode is studied.The precursory data observed by Yongnian seismostation etc.are processed with this method.The results show there are obvious anomalies in these observations before some earthquakes.In addition, some other relevant questions are also discussed here.
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