湖北省三维闪电定位系统定位误差仿真分析  

Error simulation analysis on three-dimensional lightning location network in Hubei province

作　　者：朱传林[1] 李国梁[1] 张弛儿 宋佳军[3] 汪姿荷 ZHU Chuanlin;LI Guoliang;ZHANG Chier;SONG Jiajun;WANG Zihe(Hubei Provincial Lightning Protection Center, Wuhan 430074;College of Materials Science and Engineering of Hubei University,Wuhan 430062;Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190)

机构地区：[1]湖北省防雷中心,武汉430074 [2]湖北大学材料科学与工程学院,武汉430062 [3]中国科学院电工研究所,北京100190

出　　处：《暴雨灾害》2017年第1期91-96,共6页Torrential Rain and Disasters

基　　金：湖北省雷电灾害防御科研专项(FL-Z-201401)

摘　　要：针对湖北省建设的三维闪电定位网采用的基于VLF/LF脉冲信号的多站时差定位方法,提出了一种三维闪电定位网的三维时差测量定位算法模型。利用仿真比较了正方形、梯形、星形及不规则四边形4种几何布网结构的误差分布,得出星形布网结构探测误差最小。湖北省三维闪电监测网的仿真结果表明:恩施西部、十堰西北部等局部区域的高度定位误差接近1 200 m,而湖北省大部分地区的水平定位误差在200 m以内,高度定位误差在500 m以内,定位误差较小,精度较高,总体来说该布网结构科学合理。Three-dimensional lightning location network in Hubei province is based on a multi-station TDOA location method which uses VLF/LF pulse signals. The paper presents a 3D time-of-arrival location method for three-dimensional lightning location network. By simulation,the study compares four kinds of geometric network structure, i.e., square type, trapezoid type, star type and irregular quadrilateral type.A conclusion can be drawn that the detection error of star-like network structure is the smallest. The simulation of three-dimensional lightning location network in Hubei province shows that the height error in some areas of western Enshi and northwestern Shiyan are close to 1 200 m. But in most area of Hubei, the level location error is less than 200 m and the height error is less than 500 m. The small error and the high precision indicate that the three-dimensional lightning location network is scientifically sound and reasonable.

关 键 词：三维闪电 定位算法 误差分析 MATLAB仿真 

分 类 号：P427.3[天文地球—大气科学及气象学]