| 组合滤波在标定重力仪灵敏度中的应用 |
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| 引用本文： | 李瑞浩,徐菊生,陈振邦,魏望生.组合滤波在标定重力仪灵敏度中的应用[J].地球物理学报,1983,26(5):468-478. |
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| 作者姓名： | 李瑞浩 徐菊生 陈振邦 魏望生 |
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| 作者单位： | 国家地震局地震研究所 |
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| 摘 要： | 本文根据组合滤波原理设计了11个能同时消除潮汐波和重力仪零漂的滤波器,并从中筛选出两个最优方案,分别建立了Δt=25小时和Δt=12小时的线性滤波方程,从而简单而精确地给出了重力仪灵敏度标定方法。同时,利用实际观测资料对本文给出的方法和传统的方法在计算精度和工作效率等方面做了验算对比。
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| 关 键 词： | 重力仪 组合滤波 滤波器 灵敏度标定 滤波方程 固体潮 B方法 阶跃信号 振幅因子 零漂 |
| 收稿时间： | 1982-01-15 |
APPLICATION OF THE COMBINATION FILTER TO THE SENSITIVITY CALIBRATION OF GRAVIMETERS |
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| LI RUI-HAO XU JU-SHENGCHEN ZHEN-BANG WEI WANG-SHFNG.APPLICATION OF THE COMBINATION FILTER TO THE SENSITIVITY CALIBRATION OF GRAVIMETERS[J].Chinese Journal of Geophysics,1983,26(5):468-478. |
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| Authors: | LI RUI-HAO XU JU-SHENGCHEN ZHEN-BANG WEI WANG-SHFNG |
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| Institution: | Institute of Seismology, Wuhan, China |
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| Abstract: | On the basis of the principle of coordinate combination we derive in this paper 11 filters which can simultaneously eliminate tidal waves and the drift of the gravimeters, we then select the best two projects from them to establish two sets of linear equations appropriate to sensitivity calibration of the gravimeters for two cases △t = 25h and △t=12h , where At is the time interval for adjusting reading spring of gravimeter. In this way, we have derived a simple and precise method for sensitivity calibration, which avoids completely the retardation effect of the instrument. In addition, a comparison is made of our method with that of Pertzev's using observed data. |
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