随着地震预报研究的发展,积累的地震前兆观测资料的种类越来越多,时间越来越长。资料是越来越丰富了,但是其中到底包含多少可信的地震孕育信息,如何从具有干扰的资料中提出可用的信息,这是目前地震前兆资料分析中的一个关键问题。很多观测资料是随机变量,为了获得前兆信息,不但需要从物理过程进行研究,根据物理过程对资料 With the development of earthquake prediction research, the types of accumulated earthquake precursory observation data are more and more and the time is longer and longer. The information is getting more and more abundant. However, how many credible earthquakes contain information and how to put forward the available information from disturbing data is a key issue in the analysis of seismic precursory data at present. Many observations are random variables, in order to obtain precursor information, not only from the physical process of research, according to the physical process of data