TEQC与Anubis的数据质量检核性能分析

Performance analysis of data quality check based on TEQC and Anubis

陈昊 ¹谷守周 ²秘金钟 ²姜鼎璇¹

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作者信息

1. 辽宁工程技术大学测绘与地理科学学院,辽宁阜新 123000;中国测绘科学研究院,北京 100036
2. 中国测绘科学研究院,北京 100036
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摘要

作为主流的数据质量分析软件,TEQC和Anubis(转换、编辑和质量检查软件)具备对不同格式版本的观测数据进行质量分析的功能.本研究利用这一功能,对RINEX(与接收机无关的交换格式)2.11版本的观测数据进行了数据完整率、周跳比、多路径效应和信噪比四项指标的分析.在此基础上,还利用Anubis对多样化内容的RINEX3.04格式数据进行了多系统多频点的分析.研究结果显示:Anubis和TEQC的数据完整率在观测数据未缺失时差异小于0.3％,而在多路径效应、周跳比和信噪比方面,由于其计算方法和软件特性的影响,其指标存在较大差异.Anubis在完整率、多路径效应和周跳比指标方面相比TEQC其数据质量分析性能更优,而信噪比在2个软件中均未统计出弱信号强度,其软件间的差异性影响较小,分析性能相当.此外,Anubis能够对多样化数据进行多系统多频点的分析,且通过其内置的可视化功能进行更直观和全面的数据质量分析.这对于实现高精度GNSS定位具有重要意义.

Abstract

As mainstream data quality analysis software,TEQC and Anubis (Conversion, Editing, and Quality Check software), have the capability to analyze observational data in different format versions.This study utilized this functionality to analyze four indicators—data completeness, cycle slip ratio, multipath effect, and signal-to-noise ratio—of RINEX 2.11 observational data.Additionally, Anubis was used to analyze diverse content RINEX 3.04 format data with multi-system, multi-frequency points.Results show that Anubis and TEQC have a data completeness difference of less than 0.3％ when observational data is not missing.However, significant variations exist in multipath effect, cycle slip ratio, and signal-to-noise ratio due to calculation methods and software characteristics.Anubis outperforms TEQC in completeness, multipath effect, and cycle slip ratio, while the impact of software differences on signal-to-noise ratio is relatively small.Moreover, Anubis can analyze diverse data with multi-system, multi-frequency points and provides more intuitive and comprehensive data quality analysis through its built-in visualization capabilities.This is crucial for achieving high-precision GNSS positioning.

关键词

Anubis/TEQC/数据质量分析/可视化/周跳比

Key words

Anubis/TEQC/data quality analysis/visualization/cycle slip ratio

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出版年

2024

导航定位学报

CSTPCD北大核心

影响因子：0.72

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参考文献量18

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