装备环境工程
裝備環境工程
장비배경공정
EQUIPMENT ENVIRONMENTAL ENGINEERING
2014年
3期
6-9
,共4页
海洋环境水下电磁场%相关特性%极化特性%自适应增强
海洋環境水下電磁場%相關特性%極化特性%自適應增彊
해양배경수하전자장%상관특성%겁화특성%자괄응증강
underwater electromagnetic field in ocean environment%correlated characteristics%polarization characteris-tics%adaptive enhancement
目的：掌握环境水下电磁场的基本特性以及适宜的降噪方法。方法从时域、频域、相关与极化等方面对某海域进行分析，并对得到的大量海洋环境水下电磁场特性进行总结，基于分析结果，研究自适应线谱增强技术在海洋环境水下电磁场抑制方面的应用。结果海洋环境水下电磁场具有一定的规律性和随机性，利用自适应线谱增强技术，信号强度增加了6 dB。结论通过对环境电磁场基本特性以及抑制方法的研究，可以对舰船测试中环境电磁场的影响程度进行评估，并提高目标的探测能力。
目的：掌握環境水下電磁場的基本特性以及適宜的降譟方法。方法從時域、頻域、相關與極化等方麵對某海域進行分析，併對得到的大量海洋環境水下電磁場特性進行總結，基于分析結果，研究自適應線譜增彊技術在海洋環境水下電磁場抑製方麵的應用。結果海洋環境水下電磁場具有一定的規律性和隨機性，利用自適應線譜增彊技術，信號彊度增加瞭6 dB。結論通過對環境電磁場基本特性以及抑製方法的研究，可以對艦船測試中環境電磁場的影響程度進行評估，併提高目標的探測能力。
목적：장악배경수하전자장적기본특성이급괄의적강조방법。방법종시역、빈역、상관여겁화등방면대모해역진행분석，병대득도적대량해양배경수하전자장특성진행총결，기우분석결과，연구자괄응선보증강기술재해양배경수하전자장억제방면적응용。결과해양배경수하전자장구유일정적규률성화수궤성，이용자괄응선보증강기술，신호강도증가료6 dB。결론통과대배경전자장기본특성이급억제방법적연구，가이대함선측시중배경전자장적영향정도진행평고，병제고목표적탐측능력。
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 reg-ularity 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.
