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The Method for Extraction of Marine Underwater Electromagnetic Anomalous Field

机译：提取海水水下电磁异常田的方法

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摘要

Marine underwater electromagnetic field plays an important role in the prediction of the marine disasters, such as earthquake and tsunami. A detection method for the weak marine electromagnetic anomalous signatures generated by the earthquake and tsunami is presented. In order to implement the anomalous signal detection, the ocean current meter and tidal wave meter are integrated into the marine environmental underwater electromagnetic field measurement system, and the electromagnetic field data and environmental data such as sea current and wave height can be measured synchronously. The measured environmental data should be used to construct the prediction model of marine underwater electromagnetic field induced by the sea motion. Based on the prediction model, the theoretical values of electromagnetic field induced by the sea motion are estimated. This real signature induced by the sea motion can be extracted from the measured underwater electromagnetic data by use of the coherent filter method, and the remaining anomalous signature can be used to analyze the earthquake and tsunami phenomenon.
机译：海水水下电磁场在预测海洋灾害等地震和海啸的预测中起着重要作用。提出了地震和海啸产生的弱海洋电磁异常签名的检测方法。为了实现异常信号检测，海洋电流表和潮汐仪集成到海洋环境水下电磁场测量系统中，并且可以同步地测量电磁场数据和诸如海流和波浪高的环境数据。测量的环境数据应用于构建海运诱导的海水水下电磁场预测模型。基于预测模型，估计海运诱导的电磁场的理论值。通过使用相干滤波法从测量的水下电磁数据中提取由海运动引起的该实际标志，并且剩余的异常签名可用于分析地震和海啸现象。

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