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为了适应地震研究中长期、连续地计算潮汐导纳的需要,本文在维尼狄可夫调和分析的基础上引入卡尔曼滤波理论,导出了计算潮汐导纳的递推方法。该法具有优于维尼狄可夫法的精度、计算简单、采样密等优点,且能自动判别资料中突跳等短期异常,因此不需要作资料的预处理。应用本方法对泰安台石英倾斜仪观测资料进行了计算,获得了较为满意的结果。
In order to meet the need of long-term and continual calculation of tidal admittance in seismic research, this paper introduces Kalman filter theory based on the harmonic analysis of Pivotal and derives a recursive method for calculating tide admittance. The method is superior to the Pivic-Diofi-Pivot method in that it has the advantages of precision, simple calculation, dense sampling, etc., and can automatically identify short-term anomalies such as sudden jump in the data. Therefore, it is not necessary to preprocess the data. This method is used to calculate the observed data of Tai’an platform quartz inclinometer, and the satisfactory results are obtained.