【摘要】 针对日均值前兆数据序列 ,提出一种新的前兆信息提取方法 ,即斜率差信息法 .以唐山台水准为例 ,进行了全时域扫描的实例计算 ,并与已有的几种方法进行了比较和检验 .结果表明 ,该方法经优化后对提取日均值中的短期前兆信息十分有效 ,具有推广应用价值 .更多还原

【Abstract】 A new method for precursory information extraction, i.e. slope difference information method is proposed in the paper for the daily mean value precursory data sequence. Taking Tangshan station as an example, the calculation of full time domain leveling data is made, which is tested and compared with several other methods. The results indicate that the method is very effective for extracting short term precursory information from the daily mean values after the optimization is made. Therefore, it is valuable for popularization and application.更多还原