【摘要】 用多项式拟合方法,分离出观测资料中的高频部分和低频部分,再用最小二乘法求出低频部分的直线方程。用VB编程:①检索出高频信号的超限时间、幅度、次数、超限率等;②计算出低频部分每日偏离直线均值。给定正常变化指标,从而逐项自动诊断,判定是否出现短临异常现象,为震情跟踪提供短临异常的快速识别处理软件。更多还原

【Abstract】 It is isolated from the high frequency part and low frequency part of the observation data by polynomial fitting method,and got the equation of the straight line of the low frequency part.And the results by the VB programming as following:( 1) It can retrieve the high frequency signal of the overrun time,amplitude,frequency,overrun rate,etc.;( 2) It can calculate the low frequency part of the dairy average deviates from tile straight line.Given normal change index,the software can automatic check items and determine the shortterm and impending anomalies for earthquake prediction.更多还原