A Study of Eliminating the Gross Error in Long Range Lightning Localization
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摘要: 雷电电磁脉冲探测数据受无线电噪声、电波传播误差影响会存在测量误差,产生波形畸变,会影响雷电性质识别,以及位置、强度的定量估计等。文中通过对大量实测的雷电波形间的相关系数进行研究和分析,总结出利用波形相关系数进行雷电粗差剔除的规律。同时还分析了传播路径对波形相关的影响。最后提出了综合利用时间相关和波形相关的方法进行雷电粗差剔除的思路.Abstract: Lightning electromagnetic pulse (LEMP) can be affected by radio frequency interference and radiowave propagation.Thus the distortion of the waveform is generated, which can affect the recognition of the lightning property and the quantitative estimation of the position and strength.In this paper,the correlation coefficient of a large number of measured LEMP waves is studied and analyzed, and the rules of using the waveform correlation coefficient to eliminate the gross error of LEMP are summarized.At the same time, the influence of propagation path on waveform correlation is also analyzed.Finally, a method of eliminating the gross error of LEMP is proposed by comprehensively utilizing time correlation and waveform correlation.
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Key words:
- Long range /
- lightning localization /
- electromagnetic pulse /
- the gross error elimination
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