面向交通的GNSS高精度定位完好性试验分析

doi:10.13474/j.cnki.11-2246.2023.0175

测绘通报 ›› 2023, Vol. 0 ›› Issue (6): 98-103.doi: 10.13474/j.cnki.11-2246.2023.0175

面向交通的GNSS高精度定位完好性试验分析

鲍烨青¹, 刘晖¹, 王怡欣¹, 钱闯², 唐健¹

1. 武汉大学卫星导航定位技术研究中心, 湖北武汉 430079;
2. 武汉理工大学智能交通系统研究中心, 湖北武汉 430070

收稿日期:2022-09-05 发布日期:2023-07-05
通讯作者: 唐健。E-mail:tangjian@whu.edu.cn
作者简介:鲍烨青(1998-),女,硕士生,主要研究方向为接收机自主完好性监测。E-mail:2016301610197@whu.edu.cn
基金资助:
国家重点研发计划(2021YFB2501105);湖北省重点研发计划(2020BAB095);Sponsored by DiDi GAIA Research Collaboration Plan(20211208-00098)

Experimental analysis of traffic-oriented GNSS high-precision positioning integrity

BAO Yeqing¹, LIU Hui¹, WANG Yixin¹, QIAN Chuang², TANG Jian¹

1. GNSS Research Center, Wuhan University, Wuhan 430079, China;
2. Intelligent Transportation Systems Research Center, Wuhan University of Technology, Wuhan 430070, China

Received:2022-09-05 Published:2023-07-05

摘要/Abstract

摘要： 随着差分GNSS等高精度定位技术在陆地海洋各领域的应用逐渐普及,对高精度定位的可靠性、准确性和连续性等都提出更高要求。如何借鉴航空完好性理论和技术,发展适合于高精度定位应用完好性体系成为当下研究热点之一。本文针对陆地道路交通应用,以航空完好性理论为基础,结合国内道路交通领域的特点,对高精度定位服务系统及用户终端完好性的最低性能需求进行分析,设计道路试验,利用低成本高精度模组对大范围多场景下的道路交通GNSS完好性指标进行验证。测试结果表明:高速开阔/遮挡场景的指标可用性在行进方向和左右方向分别为73.05%/52.42%和79.27%/71.30%;低速开阔/遮挡场景的指标可用性分别为80.54%/65.65%和81.09%/61.79%。

关键词: 完好性监测, 载波相位, 保护水平, 扩展卡尔曼滤波, 动态道路测试

Abstract: With the application of differential GNSS and other high-precision positioning technologies in land and marine fields gradually becoming popular, higher requirements for reliability, accuracy and continuity of high-precision positioning have been put forward, and how to develop an integrity system suitable for high-precision positioning applications based on aviation integrity theory and technology has become one of the current research hotspots. In this paper, we analyze the minimum performance requirements for the integrity of high-precision positioning service system and user terminal based on aviation integrity theory and the characteristics of domestic road traffic, design road experiments, and verify the GNSS integrity index of road traffic in a wide range of scenarios using low-cost high-precision modules. The test results show that the index availability of high-speed open/obscured scenes is 73.05%/52.42% and 79.27%/71.30% in the heading direction and left-right direction, respectively; the index availability of low-speed open/obscured scenes is 80.54%/65.65% and 81.09%/61.79%, respectively.

Key words: integrity monitoring, carrier phase, protection level, extended Kalman filtering, dynamic road test

中图分类号:

P228

鲍烨青, 刘晖, 王怡欣, 钱闯, 唐健. 面向交通的GNSS高精度定位完好性试验分析[J]. 测绘通报, 2023, 0(6): 98-103.

BAO Yeqing, LIU Hui, WANG Yixin, QIAN Chuang, TANG Jian. Experimental analysis of traffic-oriented GNSS high-precision positioning integrity[J]. Bulletin of Surveying and Mapping, 2023, 0(6): 98-103.

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面向交通的GNSS高精度定位完好性试验分析

Experimental analysis of traffic-oriented GNSS high-precision positioning integrity

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