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| Raw data format analysis of LEMI-417 earth deep electromagnetic field observation system |
| Wei ZHANG1,2, Lei HU3, Zhao-Bo ZHANG3 |
1. Chengdu Center of China Geological Survey,Chengdu 610082,China
2. School of Resources and Environment,University of Electronic Science and Technology of China,Chengdu 611731,China
3. Chengdu Information Technology Co.,Ltd.,Chinese Academy of Sciences,Chengdu 610041,China |
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Abstract When exploration of the deep electrical structure of the earth's crust and mantle scale is conducted. LEMI-417 long-period magnetotelluric sounding instrument is a prevailing system for continuously observing natural electromagnetic field. In this paper, through in-depth study of the original binary data structure of the system, the authors analyzed the corresponding data structure in C++ computer language and also listed the core program code so as to provide necessary support for researchers who are engaged in the research on deep earth exploration and signal processing in electromagnetic field.
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Received: 21 October 2019
Published: 28 August 2020
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字节
位置 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 信息
内容 | 4 | 1 | 7 | 型号 | 编号 | 年 | 月 | 日 | 时 | 分 | 秒 | 纬度(度分) | N
S | 字节
位置 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 信息
内容 | 经度(度分) | E
W | 空字
符 | 高程 | 采样
设置 | VIN | VBAT | L1 | L2 | L3 | L4 |
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LEMI-417 header file format for raw binary data (tag)
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Schematic diagram of original data structure decomposition
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字节
位置 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 信息
内容 | Hx | Hy | Hz | E1 | E2 | 字节
位置 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 信息
内容 | E2 | E3 | E4 | Tf | Te | No |
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LEMI-417 time series format of raw binary recorded data
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Screenshot of the window program interface
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