摘要
应用模糊识别方法对重复流动重力北京测网和张家口测线自１９８７年以来的观测结果进行异常模糊识别，分析了测网附近的中强地震前后从属函数异常的时空分布特征。结果表明，在几次中强地震前，从属函数均有较明显的异常。
Since 1987,the mobile gravity observation network in Beijing and Zhangjiakou are repeatedly measured at regular intervals and a great quantity of observational data are obtained. The gravity anomalies are discriminated using the method of fuzzy identification, and the space-time distributive character of the Sub Function for anomalies after and before several earthquakes near the network is analyzed.The results show that the Sub Function has a clear anomaly before the earthquakes.Therefore the fuzzy discrimination method could be useful for data processing of repeated mobile gravity network.
出处
《地壳形变与地震》
CSCD
1996年第4期66-70,共5页
Crustal Deformation and Earthquake
