实时精密单点定位的远海实时GPS潮汐观测
发布时间：2018-12-15 06:52
【摘要】：针对IGS实时数据流产品,该文开展了实时精密单点定位技术在远海实时GPS验潮中的应用研究。对RTS改正的实时精密卫星轨道和钟差进行了精度验证和分析,给出了实时精密单点定位的数据处理策略以及实时GPS验潮的基本流程;组织和实施了渤海湾船载GPS验潮试验,以压力式验潮仪数据为参考,对远距离实时GPS潮汐测量结果进行了精度分析。结果表明:以IGS最终卫星轨道和钟差产品为参考,实时数据流产品实时精密卫星轨道在X、Y、Z方向的精度均优于3cm,卫星钟差的精度优于0.15ns;采用傅里叶低通滤波方法,消除波浪对潮汐观测的影响,进一步提取潮位信息。在忽略船体姿态改正的情况下,实时精密单点定位验潮相对于压力式验潮仪结果的最大偏差优于20cm,RMS达到7.5cm。
[Abstract]:Aiming at IGS real time data stream, the application of real time precise single point positioning technology in remote sea real time GPS tide detection is studied in this paper. The precision verification and analysis of the real time precise satellite orbit and clock error corrected by RTS are carried out. The data processing strategy of real time precise single point positioning and the basic flow chart of real time GPS tide check are given. Based on the data of the pressure type tide gauge, the accuracy of the long distance real-time GPS tidal measurement results is analyzed by organizing and carrying out the GPS tidal test on the Bohai Bay. The results show that the precision of real-time precise satellite orbit is better than 3 cm in the direction of XNY Z, and the accuracy of satellite clock difference is better than 0.15 ns with reference to IGS final satellite orbit and clock difference product. Fourier low pass filter is used to eliminate the influence of wave on tidal observation and to extract tidal level information. In the case of ignoring the hull attitude correction, the maximum deviation of the real time precision single point positioning tide gauge relative to the pressure tide gauge is better than that of 20 cm ~ (-1) RMS up to 7.5 cm 路m ~ (-1).
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本文编号：2380169
[Abstract]:Aiming at IGS real time data stream, the application of real time precise single point positioning technology in remote sea real time GPS tide detection is studied in this paper. The precision verification and analysis of the real time precise satellite orbit and clock error corrected by RTS are carried out. The data processing strategy of real time precise single point positioning and the basic flow chart of real time GPS tide check are given. Based on the data of the pressure type tide gauge, the accuracy of the long distance real-time GPS tidal measurement results is analyzed by organizing and carrying out the GPS tidal test on the Bohai Bay. The results show that the precision of real-time precise satellite orbit is better than 3 cm in the direction of XNY Z, and the accuracy of satellite clock difference is better than 0.15 ns with reference to IGS final satellite orbit and clock difference product. Fourier low pass filter is used to eliminate the influence of wave on tidal observation and to extract tidal level information. In the case of ignoring the hull attitude correction, the maximum deviation of the real time precision single point positioning tide gauge relative to the pressure tide gauge is better than that of 20 cm ~ (-1) RMS up to 7.5 cm 路m ~ (-1).
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本文编号：2380169
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