机载气象雷达扫描的理想模型仿真算法
投稿时间: 2010-06-02    点此下载全文
引用本文:
摘要点击次数: 1294
全文下载次数: 1906
作者单位
魏鸣1,张思进1,2,刘佳3,邵程远2,刘晓2  
基金项目:南京信息工程大学1.气象灾害省部共建教育部重点实验室;2.大气物理学院;3.大气科学学院,江苏 南京 210044
中文摘要:利用地基多普勒天气雷达数据,提出机载雷达扫描的模拟仿真算法,并建立了仿真扫描的理论模型。该模型利用数据分层几何投影,处理速度较快、精度较高,可应用于扇形扫描和圆锥扫描。在理想情况下,设计了消除地物回波的算法及多普勒速度退模糊的算法。试验表明,仿真回波可应用于机载气象雷达实际观测前的扫描方式可行性研究,有助于分析机载雷达探测的云雨回波特性。
中文关键词:机载雷达  理论模型  分层投影  数据仿真  算法设计
 
Simulation algorithm research of an airborne Doppler weather radar with scanning ideal model
Abstract:Based on ground base radar data,the simulation algorithm of airborne radar is proposed and an ideal model of simulation scanning patterns is also established.The algorithm is quicker and precise with the geometrical projection of divided data levels.The algorithm can be used in both sector scanning and taper scanning.At ideal conditions,this paper also discusses the algorithm of the ground echo eliminating as well as the Doppler velocity dealiasing.The results show that simulated echo could be applied to the feasibility study of scanning types before the real flight observation of airborne Doppler weather radar,and helps analysis its cloud and rain echo characteristics.
keywords:airborne radar  ideal model  geometrical projection  data simulation  algorithm design
查看全文  查看/发表评论  下载PDF阅读器