摘要
通过对新一代天气雷达速度测量原理介绍,阐述了速度模糊产生的原因,在此基础上介绍了当前几种退速度模糊方法,并比较了这几种方法的特点和需要改进的地方。介绍了新一代天气雷达测速定标检查时理论计算速度值的方法和速度模糊时显示的实际速度值计算方法。为确保雷达采集的数据尤其速度场资料的可靠性,各厂家采用了不同的定标和检查方法,通过对各厂家速度定标和检查方法的分析与比较,指出了各自的特点和需注意问题,为新一代天气雷达技术保障提供借鉴。
The principles of CINRAD velocity measurement are addressed in detail and systemically,and the questions of velocity ambiguity,as well as their reasons,are discussed.Based on these analyses,two methods for correcting ambiguity are introduced：theoretical value through velocity demarcation and true value displayed while velocity ambiguity occurring.Several precision test methods of different types of CINRAD are introduced and compared mutually,and their merits and demerits are given,which can be used in the technical assurance for CINRAD.
出处
《气象科技》
北大核心
2010年第2期214-221,共8页
Meteorological Science and Technology
关键词
新一代天气雷达
速度模糊
速度定标
精度检查
CINRAD
velocity ambiguity
precision verification
velocity demarcation
