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| Ship Shaft-frequency Electric Field Testing Based on Harmonic Waves Adaptive Line Enhancer |
| Received:August 20, 2010 Revised:April 15, 2011 |
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| DOI： |
| KeyWord:Shaft-frequency electric field harmonic waves adaptive line enhancer |
| Author | Institution |
| LIU Yan-qiong |
No. 760 Research Institute of CSIC， Dalian ，China |
| YUE Rui-yong |
No. 760 Research Institute of CSIC， Dalian ，China |
| TIAN Zuo-xi |
No. 760 Research Institute of CSIC， Dalian ，China |
| HAN Jing |
No. 760 Research Institute of CSIC， Dalian ，China |
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| Abstract: |
| Shaft-frequency electric field of ship exists in 1~7 Hz and it has obvious harmonic waves. For these characteristics, harmonic waves adaptive line enhancer technology was applied to signal processing of the shaft-frequency electric field of a ship. Correlative parameters were determined through simulation. This method was used in measurement signal. The power spectrum intensity of line spectrum increased by 0.056 μ v/m higher than continuous spectrum. It was proved that background noise can be restrained effectively in shaft-frequency electric field signal with this method. |
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