唐山7.8级地震前短水准异常的模糊识别及其特性分析

利用模糊模式识别的直接方法处理了1976年唐山7.8级地震前华北地区的短水准观测资料,取得了较好的效果.该方法具有提取地震异常和排除干扰两方面的能力,计算简便,可以作为观测数据处理的一种常用方法.

FUZZY RECOGNITION FOR SHORT-LEVELLING ANOMALIES BEFORE THE TANGSHAN EARTHQUAKE OF M=7.8

A direct method based on Fuzzy Recognition has been employed to process the short-levelling seismic data collected in an area of North China before the earthquake of magnitude 7.8 in Tangshan took place. As a result, satisfactory results have been achieved. The method is shown to be capable of identifying seismic anomalies and removing interferences, which is easy to use and promising to join the conventional data processes in seismology.