两种不同方式智能手机伪距平滑分析

doi:10.13474/j.cnki.11-2246.2021.0001

测绘通报 ›› 2021, Vol. 0 ›› Issue (1): 1-8.doi: 10.13474/j.cnki.11-2246.2021.0001

• 智能终端导航与位置服务 • 下一篇

两种不同方式智能手机伪距平滑分析

肖青怀^1,2, 秘金钟¹, 谷守周¹

1. 中国测绘科学研究院, 北京 100830;
2. 北京房山人卫激光国家野外科学观测研究站, 北京 102488

收稿日期:2020-03-12 发布日期:2021-02-08
作者简介:肖青怀(1990-),男,硕士生,主要研究方向为GNSS导航与定位。E-mail:mr_xiao0912@163.com
基金资助:
国家重点研发计划（2016YFB0501801；2016YFB0502105；2016YFB0502101）；全球连续监测评估系统项目（CFZX0301040308-06）；中国测绘科学研究院基本科研业务费（AR1901）；湖南省自然资源调查与监测工程技术研究中心开放课题（2020-10）

Analysis of two different smartphone pseudo-range smoothing methods

XIAO Qinghuai^1,2, BEI Jinzhong¹, GU Shouzhou¹

1. Chinese Academy of Surveying and Mapping, Beijing 100830, China;
2. Beijing Fangshan Satellite Laser Ranging National Observation and Research Station, Beijing 102488, China

Received:2020-03-12 Published:2021-02-08

摘要/Abstract

摘要： 针对智能手机受导航芯片和天线接收器限制、伪距观测值精度不高、粗差较多等问题，本文提出利用各观测量进行历元间求双差，以探测观测值中的粗差并予以剔除，再结合多普勒观测值和载波相位观测值平滑伪距，从数据质量和伪距平滑两方面分析影响智能手机定位精度的原因，说明智能手机载波相位观测值和多普勒观测值平滑伪距的可用性。试验结果表明：智能手机载波相位平滑伪距可有效提高定位精度；多普勒观测值平滑伪距定位精度与导航芯片获取的多普勒观测值有关，小米MI8多普勒观测值精度优于华为P30。

关键词: 智能手机, 多普勒, 载波相位, 平滑, 精度分析

Abstract: Aiming at the problems that smartphones are limited by navigation chips and antenna receivers, the accuracy of pseudorange observations is not high, and there are many gross errors. This paper proposes to use the various measurements to detect double differences among epochs in order to find and remove the gross errors in the observed values, and then use the Doppler observations and carrier phase observations to smooth the pseudo-ranges. The reasons that affect the positioning accuracy of smartphones are analyzed from aspects. And the availability of carrier phase observations and Doppler observations for smoothing pseudoranges are explained. The experimental results show that the carrier phase smoothing pseudorange can effectively improve the positioning accuracy; the Doppler observation smoothing pseudorange positioning accuracy is related to the Doppler observations obtained by the navigation chip, and the MI8 Doppler observations have better accuracy than P30.

Key words: smartphone, Doppler, carrier phase, smoothing, accuracy analysis

中图分类号:

P228

肖青怀, 秘金钟, 谷守周. 两种不同方式智能手机伪距平滑分析[J]. 测绘通报, 2021, 0(1): 1-8.

XIAO Qinghuai, BEI Jinzhong, GU Shouzhou. Analysis of two different smartphone pseudo-range smoothing methods[J]. Bulletin of Surveying and Mapping, 2021, 0(1): 1-8.

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两种不同方式智能手机伪距平滑分析

Analysis of two different smartphone pseudo-range smoothing methods

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