| ZNC型智能磁力仪Z分量日变形态傅氏拟合误差分析 |
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| 引用本文： | 郑江蓉.ZNC型智能磁力仪Z分量日变形态傅氏拟合误差分析[J].地震地磁观测与研究,1997,18(1):42-45,54. |
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| 作者姓名： | 郑江蓉 |
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| 作者单位： | 江苏省地震局 |
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| 摘 要： | 采用傅氏拟合法对ＺＮＣ型智能磁力仪观测所得每日１４４０个数据进行低通滤波，并对滤波前后的各项结果与量图值进行了分析，结果认为：对于这种高采样率的观测数据，需要进行低通滤波后才能抽取２４个整点值及计算机自动判断极值和极值时间。
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| 关 键 词： | 傅里叶变换 拟合 智能磁力仪 误差 地磁观测 |
Error analysis of Fourier of Z daily variation for ZNC intellec- tual faculties proton precession magnetometer |
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| Zheng Jiangrong,Feng Zhisheng,Liu Guangkuan,Huangfu Deyin and Wu Huolin.Error analysis of Fourier of Z daily variation for ZNC intellec- tual faculties proton precession magnetometer[J].Seismological and Geomagnetic Observation and Research,1997,18(1):42-45,54. |
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| Authors: | Zheng Jiangrong Feng Zhisheng Liu Guangkuan Huangfu Deyin and Wu Huolin |
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| Abstract: | This article deals with the low-pass filtering with Fourier fitting method to 1440 data (There is an interval of one minute between every sampling) observed by the ZNC protn mag- netometer with the intellectual faculties . Each result before and after filtering with the mea- sured value of map are contrasted and analized. As result of this , we hold it neccessary to make low-pass filtering to the observed data of the high sampling rate , and then we can take out 24 integrat point values and the extreme value and time auto matically are obtained by the Computer. |
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| Keywords: | Fourier transform fit proton precession magnetometer with the intellectual fac- ulties |
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