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Removal of noises from electromagnetic radiation of coal or rock with EEMD-adaptive morphological filter |
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| Authors: | Shi-hai Chen En-yuan Wang |
| Affiliation: | 1. School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, 221008, China 2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, 221008, China 3. Faculty of Safety Engineering, China University of Mining and Technology, Xuzhou, 221008, China |
| Abstract: | The electromagnetic radiation (EMR) signal collected by monitoring system during coal or rock dynamic disaster may be interferred easily by electromagnetic noises in mines. The noises have a direct influence on the recognition and analysis of the EMR signal features during the disaster. With the aim of removing these noises, an ensemble empirical mode decomposition (EEMD) adaptive morphological filter was proposed. From the result of the simulation and the experiment, it is shown that the method can restrain the random noise and white Gaussian noise mixed with EMR signal effectively. The filter is highly useful for improving the robustness of the coal or rock dynamic disaster monitoring system. |
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