| 北斗探空系统研发及其测风性能初步分析 |
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| 引用本文： | 张恩红,曹云昌,朱彬.北斗探空系统研发及其测风性能初步分析[J].应用气象学报,2013,24(4):464-471. |
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| 作者姓名： | 张恩红 曹云昌 朱彬 |
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| 作者单位： | 1.中国气象局气象探测中心，北京 100081 |
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| 基金项目： | 资助项目：公益性行业（气象）科研专项（GYHY201006048） |
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| 摘 要： | 高空气象观测是综合气象观测系统的重要组成部分，对天气预报、气候变化等业务科研具有重要的作用。基于北斗卫星导航系统研发了北斗探空仪及地面接收系统，目前试验样机生产已初步完成。北斗探空仪可采取单北斗、单GPS、北斗与GPS混合定位测风等3种测风模式，试验结果表明:北斗探空仪采用混合定位测速方式测风与GPS标准探空仪相比, 北向速度标准差为0.05 m·s-1，平均偏差为-0.05 m·s-1; 东向速度标准偏差为0.03 m·s-1, 平均偏差为-0.01 m·s-1; 高度标准偏差为6.88 m，平均偏差为7.48 m。北斗探空仪测风性能与GPS探空仪相当。
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| 关 键 词： | 北斗卫星导航系统 北斗探空系统 北斗探空仪 测风 |
| 收稿时间： | 2013-01-31 |
Developing of Beidou Radiosonde System and Analysis on Its Wind Measuring Performance |
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| Zhang Enhong,Cao Yunchang and Zhu Bin.Developing of Beidou Radiosonde System and Analysis on Its Wind Measuring Performance[J].Quarterly Journal of Applied Meteorology,2013,24(4):464-471. |
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| Authors: | Zhang Enhong Cao Yunchang and Zhu Bin |
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| Institution: | 1.Meteorological Observation Center of CMA, Beijing 1000812.Key Laboratory for Atmospheric Physics and Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 2100443.Guangdong Provincial Meteorological Information Center, Guangzhou 510080 |
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| Abstract: | As an important constituent of the integrated meteorological observation system, the upper air meteorological observations have extremely important effects on weather forecast, climate change research and other work, and it plays an irreplaceable benchmark function in atmospheric remote sensing observation authenticity verification and calibration of testing. The development of Beidou radiosonde and the ground receiving system is based on Beidou Satellite Navigation System with completely independent intellectual property rights, and the prototypes are assembled. By the end of 2012, Beidou Satellite Navigation System can provide preliminary service with 14 satellites in orbit, including 5 Geostationary Earth Orbit (GEO) satellites, 4 Medium Earth Orbit (MEO) satellites and 5 Inclined Geosynchronous Satellite Orbit (IGSO) satellites in 3 inclined orbits. On this basis, Beidou radiosonde is examined, and comparative analysis are carried out on its different patterns of wind measuring, i.e., single Beidou, single GPS and mixed mode. The results show that the wind measuring performance of Beidou and GPS radiosonde is quite close. The deviation of Beidou radiosonde compared to the GPS radiosonde is as follows: The standard deviation of the north velocity is 0.05 m·s-1, the average deviation is-0.05 m·s-1, the standard deviation of the east velocity is 0.03 m·s-1, the average deviation is-0.01 m·s-1, the height standard deviation is 6.88 m and the average deviation is 7.48 m. The PDOP value in single Beidou mode is large compared to GPS radiosonde and the accuracy of positioning is poor, because the current constellation is not fully deployed. Beidou radiosonde performance is relatively stable in the lower atmosphere, but a violent wave happens in the high level atmosphere, which means that the stability of the national dual-mode chip and module needs improving. |
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| Keywords: | Beidou Satellite Navigation System Beidou radiosonde system Beidou radiosonde wind measuring |
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