| 雷达回波跟踪的两种方法及精度比较 |
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| 引用本文： | 汤达章,周咏梅.雷达回波跟踪的两种方法及精度比较[J].应用气象学报,1994,5(3):304-311. |
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| 作者姓名： | 汤达章 周咏梅 |
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| 作者单位： | 南京气象学院 |
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| 摘 要： | 文章研究了用于天气雷达回波跟踪的矩不变量法和相关亮度综合分析法。首先用多阈值法对回波图象分团，然后计算出矩不变量和相关亮度系数，作为判别因子，分别用于回波团的跟踪，并作出回波移动的现时预报。实测资料的试验结果表明:矩不变量法的跟踪成功率高于相关亮度综合分析法。
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| 关 键 词： | 回波跟踪 矩不变量 相关亮度 |
Two Radar Echo Tracking Methods and Comparison Between Their Accuracies |
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| Tang Dazhang.Two Radar Echo Tracking Methods and Comparison Between Their Accuracies[J].Quarterly Journal of Applied Meteorology,1994,5(3):304-311. |
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| Authors: | Tang Dazhang |
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| Institution: | 1) (Nanjing Institute of Meteorology, Nanjing 210044); 2) (Qinghai Weather Bureau, Xining 810001); 3) (Air Force Institute of Meteorology, Nanjing 211101) |
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| Abstract: | Two kind;of methods in trachng radar echoes,momient invariants and correlation-brightness are investigated; The radar echocs are clustered using muItiple thresliold,then,the coefficients of moment invariants and correlation-bri9htness are calculated.They are used as judgment factors to track radar echoes and to forecast theirmovements. Experirnents have been made using real-time radar data. The resultsshow that the accuracy by monient invariants method is higher than the one bycorrelation-brightness method. |
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| Keywords: | Echo tracking Moment invariant Correlation-brightness |
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