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首页> 外文会议>CSNC 2012;China satellite navigation conference >Preliminary Analysis on Pseudorange Data Quality and Positioning Accuracy of Beidou Satellite Navigation System
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Preliminary Analysis on Pseudorange Data Quality and Positioning Accuracy of Beidou Satellite Navigation System

机译：浅析北斗卫星导航系统的伪距数据质量和定位精度

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There are seven valid satellites in Beidou navigation system (COMPASS) now, including three Geostationary Orbit satellites (GEO) and four inclined Geo-synchronization orbit satellites (IGSO). In this paper, assessment methods of COMPASS satellite pseudorange observation's accuracy are researched into and COMPASS data are analyzed with self-compiled software in detail. Code pseudorange point positioning accuracy was also analyzed with the software and COMPASS data collected from September 5 to 11, 2011, and data quality control methods are studied during this period. The results demonstrate that: COMPASS pseudorange's multi-path effects and measurement errors are about 0.5-3 m; The percentage of coordinate differences-|△N|,|△E|,|△U| within less than 10 m in pseudorange single point positioning (October 2) are 67, 100 and 64%, respectively; the accuracy (RMS) in the North, East and Up direction during these 7 days are about 9.70, 5.56, 11.25 m; The horizontal and three-dimensional positioning accuracies are about 11.23 and 15.92 m respectively.
机译：目前，北斗导航系统（COMPASS）中有7颗有效卫星，包括3颗对地静止轨道卫星（GEO）和4颗倾斜地球同步轨道卫星（IGSO）。本文研究了COMPASS卫星伪距观测精度的评估方法，并利用自编译软件对COMPASS数据进行了详细分析。还使用软件和2011年9月5日至11日收集的COMPASS数据对代码伪距点定位精度进行了分析，并研究了此期间的数据质量控制方法。结果表明：COMPASS伪距的多径效应和测量误差约为0.5-3 m。坐标差的百分比-|△N |，|△E |，|△U |在伪距单点定位（10月2日）小于10 m的范围内，分别为67％，100％和64％;在这7天中，北，东和上方向的精度（RMS）分别约为9.70、5.56、11.25 m;水平和三维定位精度分别约为11.23 m和15.92 m。

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