激光技术2025，Vol.49Issue(2)：203-209,7.DOI:10.7510/jgjs.issn.1001-3806.2025.02.007
激光雷达低空风切变告警算法的应用研究与分析
Research and analysis of low-level wind shear warning algorithm in LiDAR
赵刚 1黄轩 1华志强1
作者信息
- 1. 中国民航 青海空管分局 气象台,西宁 810000,中国
- 折叠
摘要
Abstract
In order to compare the application effect of two low altitude wind shear alerting algorithms of combined shear algorithm and the regional divergence algorithm on wind light detection and ranging(LiDAR)in complex wind fields,15 wind shear cases caused by 3 typical weather processes of convective system,cold front,and momentum down at a typical plateau airport from 2017-12 to 2023-04 were selected for comparative analysis of the effectiveness of the recognition algorithms by using a wind LiDAR radar that is made in China.The results show that the accuracy of the combined shear algorithm and the regional divergence algorithm are 73.3%and 67.7%,respectively.The validity of low-level wind shear alarm obtained by the algorithm can last for more than 10 min.It can be seen that the combined shear algorithm is more advantageous in the identification of small-scale low-level wind shear.However,in the case of convective type and cold front type low-level wind shear with slow wind field change,the recognition rate of the two algorithms is not high.The research results of this paper have a good reference significance for equipment manufacturers to improve the low altitude wind shear alerting algorithm.关键词
激光技术/低空风切变告警/测风激光雷达/组合切变算法/区域散度算法Key words
laser technique/low-level wind shear alarm/wind light detection and ranging/combined shear algorithm/region divergence algorithm分类
电子信息工程引用本文复制引用
赵刚,黄轩,华志强..激光雷达低空风切变告警算法的应用研究与分析[J].激光技术,2025,49(2):203-209,7.
