适应多型毫米波雷达数据的通用读取程序设计

The Programming Implementation for Reading base Data Collected From Several Millimeter-wave Cloud Radars

云是研究大气系统的重要要素,较厘米雷达而言毫米波测云雷达波长更短,可以探测到大气中的云并获得重要参数,在探测云方面毫米波雷达表现出了更大的优势。分析毫米波雷达原始数据格式对于分析云特征是十分必要的。论文主要介绍目前比较常用且成功运行获得了大量数据的3种型号的毫米波雷达。首先针对3种型号雷达基数据文件格式特征,提出5组判据作为识别方法,实现对文件二进制信息的自动分析,能够识别3种常用的毫米波雷达基数据文件的类型;其次为便于3种毫米波雷达产品的对比分析,还针对这3种毫米波雷达产品数据格式的不同,编写了同时兼容这3种雷达数据产品(反射率强度、速度、谱宽、退极化比)和4种雷达扫描方式(垂直定点扫描、平面扫描、俯仰扫描、体积扫描)产品的显示软件,并采用相同的显示规则,结果显示:方法简单、识别准确,使软件以较小代价兼容多种雷达基数据文件且对于分析对比该3种不同型号毫米雷达产品也是十分便利的。

The cloud is an important element of atmospheric system research. Millimeter-wave cloud radar＇s wavelength is shorter than the centimeter-wave radar, so it can detect cloud and important parameters. Millimeter-wave radar showed a greater advantage in the detectionof cloud. Analysis of the millimeter-wave radar raw data format is very necessary for us to analyze cloud＇ s characteristics. This paper mainly introduces three kinds of commonly Millimeter-wave radars which have run successfully and got a lot of data. Firstly, based on the different raw data file characteristics of three types of radar, we choose five groups of criterion as identification method. By automatical analysis of the information of binary files, we can identify three common types of millimeter-wave cloud radar raw data file. Secondly in order to facilitate the comparison and analysis of the three kinds of millimeter-wave radar, this paper is aimed at the different format of the three kinds of millimeter wave radar raw data and we program a display software compatible with the three kinds of radar products（Refleetivity, V,W, LDR） and four kinds of radar scaning mode（Vertical point scaning ,PPI, RHI, VOL） products at the same time and adopted to the same display rules, In conclusion, in this paper, our simple and accurate identification method can be applied to achieve the software com- patible with a variety of radar raw data file to smaller cost and make the analysis of the three kinds of millimeter radar products very convenient.