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| Research on Rudimentary Characteristics of Underwater Electromagnetic Field in Ocean Environment and Suppression Method |
| Received:February 20, 2014 Revised:March 25, 2014 |
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| DOI：10.7643/issn.1672-9242.2014.03.002 |
| KeyWord:underwater electromagnetic field in ocean environment correlated characteristics polarization characteristics adaptive enhancement |
| Author | Institution |
| JIANG Li-jun |
Naval Agent's Room in Dalian Region, Dalian , China |
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| Abstract: |
| Objective To master the basic characteristics of underwater electromagnetic field in ocean environment and suitable noise reduction methods. Methods Firstly, from the time domain, frequency domain, correlation and polarization etc. , analyses on a large number of electromagnetic characteristics in certain areas were summarized. Based on analyses,we studied the application of adaptive line enhancement technology in suppression of underwater electromagnetic field in the ocean environment. Results The results showed that underwater electromagnetic field in ocean environment had certain regularity and randomness. Using adaptive line enhancement technology, we could see that the signal strength was increased by 6 dB. Conclusion Impact could be evaluated in the test ship and the detection capability of a target could be improved through studying the basic characteristics of environmental electromagnetic fields and the inhibition method. |
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