相位单差残差评估北斗区域导航系统载波相位观测量质量

发布时间：2018-05-12 13:23

本文选题：北斗区域导航系统 + 站际单差　；参考：《测绘科学技术学报》2017年01期

【摘要】：由于北斗区域导航系统采用混合星座设计,其不同类型卫星载波相位观测量的质量得到广泛关注。当基线较短且模糊度正确固定后,卫星残差信息可有效反映观测数据质量。本文采用优化的站际单差算法获取不同卫星单差残差序列,并对其进行统计分析与假设检验。结果表明,北斗GEO与IGSO卫星数据质量无系统性差异,其质量随卫星高度角的降低而明显变差。良好环境下,GEO与IGSO卫星相位单差残差基本服从正态分布,可依据卫星高度角等信号质量指标建立合适的随机模型。
[Abstract]:Because Beidou regional navigation system is designed by hybrid constellation, the quality of carrier phase observations of different types of satellite has been paid more and more attention. When the baseline is short and the ambiguity is fixed correctly, the satellite residual information can effectively reflect the quality of the observed data. In this paper, the optimal inter-station single difference algorithm is used to obtain different satellite single error residuals, and its statistical analysis and hypothesis testing are carried out. The results show that there is no systematic difference in the data quality between Beidou GEO and IGSO satellite, and the quality becomes worse with the decrease of satellite altitude angle. In a good environment, the phase single difference residuals of IGSO and Go satellites are normally distributed, and a suitable random model can be established according to the satellite height angle and other signal quality indexes.
【作者单位】：中国电力工程顾问集团西北电力设计院有限公司;长安大学地质工程与测绘学院;
【分类号】：P228.4

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