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本文采用褶积组合滤波方法对延边台1982年山洞摆房地倾斜数据进行了处理,结果表明:(1)滤波后明显突出了仪器不稳定因素带来的短临干扰。(2)无人为干扰的滤波输出呈现出明显的规律性,其值服从正态分布。(3)同一时间段、同一仪器墩上的二套仪器间的观测数据滤波输出值的均方差、均值的差异性检验说明,二套仪器的噪声水平及NS向均值无显著性差异,EW向均值差异显著。(4)1、2月时段上NS向出现的短临信息可能反映了朝鲜半岛1982年2月14日6.0级地震前区域地壳形变异常。
In this paper, the convolution combination filtering method was used to deal with the data of the pendulum tilt of the Yanbian station in 1982. The results show that: (1) The short-term interference caused by instability of the instrument is obviously highlighted after filtering. (2) The output of the filter without human interference shows obvious regularity, its value obeys the normal distribution. (3) In the same period of time, the mean square error and mean value of the filtered output values of the two sets of instruments on the same instrument pier showed no significant difference between the noise level of the two sets of instruments and the mean value of NS, and the EW Significant difference between the mean. (4) The short-and-short-term information appearing in the NS direction in January and February periods may reflect the regional crustal deformation anomaly in the Korean Peninsula before the MS 6.0 Ms 6.0 earthquake on February 14,