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本文给出了一种多种前兆观测项目综合预报的方法。其思路是确定出n种前兆观测项目某同一时间段t~*的数据作为分析预报的数列X_1,X_2,……X_n ,将不同震级地震发震前的n种前兆观测项目某一时间段的数据,分别视为相应震级的有震点数列组A_1组,A_2组,……A_n组。找出n种前兆观测项目的正常变化年份,将各观测项目同一时间段t~*的数据作为无震点数列B_1,B_2,……B_n,运用“图象识别”计算出有震数列组与无震数列组的最佳分界线(或n维空间的超平面)_0+_1X_1+_2X_2+……+_nX_n……(1),将所要预报的数列X_1,X_2,……X_n代入方程(1),以确定此数列是属于有震点数列组还是无震点数列组,从而达到预报的目的。
This paper presents a method for comprehensive forecasting of a variety of precursor observations. The idea is to determine the data of t ~ * of some kinds of precursory observation projects of the same time period as the series X_1, X_2, ..., X_n of the forecast and forecast. The n kinds of precursory observation items before the earthquake of different magnitude Data, respectively, as the corresponding magnitude earthquake point sequence group A_1 group, A_2 group, ...... A_n group. Find out the normal change years of the n kinds of precursory observation items, use the data of t ~ * in the same time period of each observation item as the non-quake point sequence B_1, B_2, ... B_n, The optimal demarcation line (or hyperplane in n-dimensional space) 无_0 + _1X_1 + _2X_2 + ...... + _nX_n ...... (1) of the non-seismic sequence group is substituted into the equation 1) to determine whether the series belongs to the group of quake points or the group of quake-free points, so as to achieve the purpose of forecasting.