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。
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.
出处
《应用气象学报》
CSCD
北大核心
1994年第3期304-311,共8页
Journal of Applied Meteorological Science
关键词
回波跟踪
相关亮度
雷达
降水预报
Echo tracking
Moment invariant
Correlation-brightness
