定点形变资料短临异常的自动检索处理软件  

AUTOMATICALLY RETRIEVE PROCESSING SOFTWARE OF SHORT-TERM AND IMPENDING ANOMALIES OF FIXED-POINT DEFORMATION DATA

作　　者：柯昌安[1] 

机构地区：[1]陕西省地震局,陕西西安710068

出　　处：《高原地震》2013年第3期40-44,共5页Plateau Earthquake Research

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。It is isolated from the high frequency part and low frequency part of the observation data by polyno- mial 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 short- term and impending anomalies for earthquake prediction.

关 键 词：形变资料 短临异常 异常指标 自动检索 

分 类 号：P315-39[天文地球—地震学]