利用北斗导航系统探测高空风的研究

Research on upper wind measurement with BD navigation system

我国北斗二号已进入快速布网建设阶段,本文基于现有北斗导航系统的定位服务方式,分析了应用于高空风探测的途径,得出了利用探空仪自身探测高度,采用北斗RDSS无源定位方式获取气球系统位置,进而探测高空风的技术途径。本文设计了北斗定位板,研制了北斗探空仪,构建了北斗高空探测系统,并进行了北斗探空仪与GPS探空仪的同球对比施放试验。试验结果表明,现有北斗高空探测系统高空风探测精度基本满足气象业务要求。

The Chinese satellite navigation system of BD-II has been deploying satellite nets in the present. In this paper, based on the location mode of present BD-II, it analyzed the ways of how to apply in the upper wind measure. The radiosonde detection height was obtained by air press-height relation, the position of the balloon system was got by BD RDSS passive positioning mode, and the up- per wind was measured finally. This paper designed the circuit board module of BD positioning, developed the BD-radiosonde, con- structed the aerological sounding system of BD, and comparative experiment by BD and GPS aerological sounding system was carried out. The results showed that the accuracy of upper wind measurement by using Beidou could accord with the business requirements.