低成本μ-blox单频多系统GNSS接收机的定位性能分析

龙驰宇; 温强

doi:DOI:10.13442/j.gnss.1008-9268.2019.04.012

低成本μ-blox单频多系统GNSS接收机的定位性能分析

龙驰宇¹,
温强^2,

1. 武汉大学测绘学院,湖北武汉430079
2.
武汉大学卫星导航定位技术研究中心,湖北武汉430079

详细信息

作者简介:
温强 (1994—),男, 硕士研究生, 主要从事GNSS高精度定位算法研究.

通信作者:
温强 E-mail: qwen@whu.edu.cn

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出版历程
- 刊出日期: 2019-08-14

Positioning performance analysis of a low-cost μ-blox single-frequency multi-GNSS receiver

LONG Chiyu¹,
WEN Qiang^2,

School of Geodesy and Geomatics,Wuhan University, Wuhan 430079, China
2.
GNSS Research Center,Wuhan University, Wuhan 430079, China

摘要

摘要: 随着大众市场对高精度定位需求增加,基于低成本小型化设备的全球卫星导航系统(GNSS)高精度定位成为研究热点之一. 本文以低成本多系统GNSS接收机μ-blox M8P型号为例,分析其观测数据质量,研究其伪距单点定位和单频载波相对定位的定位性能和特点,为低成本GNSS接收机高精度定位应用提供参考. 实验结果表明,与测量型接收机相比,μ-blox输出GNSS观测值的载噪比略小,伪距和载波相位的测量噪声较大. 静态模式下,μ-blox的单频载波相对定位(基线长度约为430 m)可以提供厘米级的定位精度;城市环境动态模式下,其单频载波相对定位可提供亚米级至米级的定位精度. 信号受限环境下,GPS／GLONASS双系统能够提供更稳定的定位结果.
- GNSS /
- 单频 /
- 低成本μ-blox接收机 /
- 数据质量分析 /
- 高精度定位
Abstract: In recent years, high precision positioning of low-cost miniaturized GNSS receiver has been a hot topic on account of the big surge of high precision positioning in mass market. In this paper, we analyse the quality of GNSS observations and evaluate the positioning performance of a new low-cost, single frequency, multi-GNSS receiver μ-blox M8P in different scenarios with different processing strategies, providing reference for high precision positioning of low-cost GNSS receiver. The experimental results show that the carrier to noise ratio of GNSS observations of μ-blox is lower than that of geodetic receiver and the pseudorange and carrier phase noise are higher. In static mode the low-cost GNSS receiver can achieve a high performance with a precision of centimeter level from short baseline relative positioning. In dynamic urban vehicle test the low-cost GNSS receiver can provide a precision of sub-meter to meter level with short baseline relative positioning. In a signal-constrained environment, the GPS／GLONASS combined positioning can provide more stable results.
- GNSS /
- single frequency /
- low-cost μ-blox receiver /
- data quality analysis /
- high precision positioning

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