机载多扫描气象雷达的目标垂直轮廓重建  

Reconstruction Method of Vertical Profile of Target for Airborne Multi-Scan Weather Radar

作　　者：李银斌[1,2] 李勇[1,2] 何力[1,2] 

机构地区：[1]雷达成像与微波光子技术教育部重点实验室(南京航空航天大学),江苏南京210016 [2]南京航空航天大学电子信息工程学院,江苏南京210016

出　　处：《雷达科学与技术》2016年第1期7-12,共6页Radar Science and Technology

基　　金：江苏省高校优势学科建设工程资助项目;航空科学基金资助项目(No.20142052020)

摘　　要：利用机载多扫描气象雷达获取气象回波信息,实现对飞机前方气象目标垂直轮廓的显示,快速、准确、全面地反映出气象目标雷达反射率因子在高度维的强度变化与分布范围,提出了一种机载多扫描气象雷达目标垂直轮廓重建方法。通过机载气象雷达在多扫描工作模式下得到至少8层气象目标信息,在信息重建过程中创新地运用气象学统计气象目标反射率因子变化规律统计模型,使得多扫描回波信息真实、完整地再现载机航路正前方气象目标垂直轮廓,具有方法简单、操作方便的优点,处理数据量少于传统方法,对系统要求低,重建精度较高。Using the meteorological echo information obtained by the multi-scan airborne weather radar, we get the weather target vertical profile in front of the aircraft. It can reflect the intensity changing and the distribution range of the radar reflectivity factor quickly, accurately and comprehensively. On the basis, we propose a vertical profile reconstruction method for weather target. By means of this method, the airborne weather Yadar can get at least eight-layer meteorological information in scanning mode. And in the information reconstruction process, we establish the statistical model of variation of weather target reflectivity factor innovatively using meteorology statistics. So that the reconstruction of the weather target vertical profile in front of aircraft route can be completed truly and perfectly. In addition, this method has other advantages, such as convenient operation, small amount of processing data, lower requirement for system, and higher reconstruction precision.

关 键 词：气象雷达 轮廓重建 

分 类 号：TN959.4[电子电信—信号与信息处理]