祝会忠,李骏鹏,李军

• 1:辽宁工程技术大学测绘与地理科学学院

摘要(Abstract)：

针对智能手机定位的研究大都集中于单频定位性能与算法，而缺乏对多系统多个频段定位实验的分析的问题，该文对智能手机GNSS多系统多个频段的观测数据进行质量分析，根据应用程序接口(API)信息，检核后的多普勒积分法与电离层残差法对异常数据进行处理，同时根据不同系统不同频段的观测数据质量，实时修改滤波观测值噪声方差以提高定位精度。开发了一款基于安卓平台的实时定位应用程序，通过实验对比分析了GPS、BDS、Galileo、GLONASS各个频段不同组合的动态定位性能。实验结果表明，GNSS多系统组合的收敛速度与定位精度最佳，固定解平面与高程方向精度最高可达0.04、0.07 m,浮点解精度收敛之后平面方向精度为0.15 m、高程方向精度为0.16 m。多系统第一频率(L1/B1/E1/G1)组合后定位结果较单系统平面方向精度提升71.3%,高程方向精度提升55.5%,在多系统第一频率基础上增加第二频率(L5/E5a)后，平面方向精度提升13%,高程方向精度提升32%。

关键词(KeyWords)： GNSS;安卓智能手机;实时动态定位;多系统多频

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41504010,41504030);; 国家重点研究发展计划项目(2016YFC0803102)

作者(Author): 祝会忠,李骏鹏,李军

DOI: 10.16251/j.cnki.1009-2307.2022.09.002

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