An improved distance finding technique for single-site lightning location system using reflection characteristics of the anisotropic ionosphere
An improved distance finding technique for single-site lightning location system using reflection characteristics of the anisotropic ionosphere
复制标题
利用各向异性电离层反射特性改进单点闪电定位系统测距技术
DOI：
10.1109/ursigass.2011.6050699
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
and I. Nagano
中科院分区：
文献类型：
--
作者：
M. Ozaki;S. Yagitani;K. Miyazaki;and I. Nagano
本文利用磁化电离层影响下的理论天电，对单站闪电定位系统的测距技术进行了评价。计算得到的电离层反射系数在较小的入射角下是稳定的，而在70度左右的较大入射角下则表现出较差的反射。当在估计中排除具有最大入射角的第一反射脉冲时，提高了测距精度。改进后的测距技术的误差小于5%，而使用第一反射脉冲的测距技术的误差为20%。
The distance finding technique for a single-site lightning location system is evaluated by using theoretical sferics, which are calculated under the effect of the magnetized ionosphere. The calculated ionospheric reflection coefficients are stable at smaller incident angles, while they exhibit a poor reflection at larger incident angles around 70 degrees. The distance finding accuracy is improved when the 1st reflected pulse of the sferic having the largest incident angle is excluded in the estimation. The errors of the improved distance finding technique become less than 5%, while those of the previous technique using the 1st reflected pulse were 20%.