| 基于SSR改正的实时精密单点定位精度分析 |
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| 引用本文： | 夏凤雨,叶世榕,赵乐文,胡广保.基于SSR改正的实时精密单点定位精度分析[J].导航定位于授时,2017,4(3):52-57. |
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| 作者姓名： | 夏凤雨 叶世榕 赵乐文 胡广保 |
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| 作者单位： | 武汉大学卫星导航定位技术研究中心,武汉,430079 |
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| 基金项目： | 福建省科技计划项目(2016Y0002) |
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| 摘 要： | 通过IGS分析中心实时播发的SSR(State Space Representation)信息修正广播星历轨道和钟差,使用扩展Kalman滤波数据处理方法仿真实时精密单点定位。结果表明:经过实时SSR修正后的广播星历钟差与IGS最终钟差产品相比,精度优于0.15ns。广播星历SSR修正的实时精密单点定位单天解ENU方向RMS优于20cm,其优于超快速预报星历的实时精密单点定位结果,低于基于IGS最终精密星历的动态精密单点定位精度。
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| 关 键 词： | 扩展Kalman滤波 精密单点定位 实时SSR |
| 收稿时间： | 2016/12/9 0:00:00 |
| 修稿时间： | 2017/4/18 0:00:00 |
Analysis of Real-time Precision Point Positioning
Based on SSR
Corrections |
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| XIA Feng-yu,YE Shi-rong,ZHAO Le-wen and HU Guang-bao.Analysis of Real-time Precision Point Positioning
Based on SSR
Corrections[J].Navigation Positioning & Timing,2017,4(3):52-57. |
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| Authors: | XIA Feng-yu YE Shi-rong ZHAO Le-wen and HU Guang-bao |
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| Institution: | Research Center of GNSS,Wuhan University,,, |
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| Abstract: | SSR Information By IGS Analysis Center real-time broadcasting to correct ephemeris and clock, using the extended Kalman filter algorithm simulation realize real-time precise point positioning. The results showed that after SSR modified broadcast ephemeris clock and IGS final clock products compared, the accuracy is better than 0.15ns. SSR broadcast ephemeris corrections of real-time precise point positioning ENU direction RMS is better than 2 decimeters in single day solution, better than the rapid ephemeris of real-time precise point positioning results and lower than the IGS final precise ephemeris of dynamic precise point positioning results. |
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| Keywords: | extended Kalman filter precise point positioning real-time SSR |
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