The Signal Detection for Predicting Significant Earthquake Using PCA
The Signal Detection for Predicting Significant Earthquake Using PCA
复制标题
利用主成分分析预测重大地震的信号检测
DOI：
10.1541/ieejeiss.123.2170
复制
发表时间：
2003
影响因子：
--
通讯作者：
M. Hata
中科院分区：
文献类型：
--
作者：
Shin Niwa;H. Yasukawa;I. Takumi;M. Hata
The tectonic activities that precede significant earthquakes release electromagnetic (EM) waves that can be used as earthquake precursors. We have been observing EM radiation in the ELF (extremely low frequency) band at about 40 observation stations in Japan for predicting significant earthquakes. The recorded signals contain, however, several noise components generated from the ionosphere, human activity, and so on. Most background noise in observed signal is attributed to lightning in the tropics. In this paper, we propose a method based on PCA (principal component analysis) to detect signals from large data sets. The good performance of the proposed method is confirmed.
