远区雷电定位粗差判别方法研究  

A Study of Eliminating the Gross Error in Long Range Lightning Localization

作　　者：沈宇[1] 刘裔文[1] 熊雯[1] 黄晓 张琼 SHEN Yu;LIU Yiwen;XIONG Wen;HUANG Xiao;ZHANG Qiong(China Research Institute of Radio wave propagation,Qingdao 266107,China;COMAC Shanghai Aircraft Design and Research Institute,Shanghai 201210)

机构地区：[1]中国电波传播研究所,山东青岛266107 [2]上海飞机设计研究院型号联络工程部,上海201210

出　　处：《全球定位系统》2018年第4期48-52,共5页Gnss World of China

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.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.

关 键 词：远区 雷电定位 电磁脉冲 粗差判别 波形相关 

分 类 号：P228.4[天文地球—大地测量学与测量工程]