一种RTK单历元整周模糊度快速确定MAXCOM-DC组合算法

doi:10.13474/j.cnki.11-2246.2025.0118

测绘通报 ›› 2025, Vol. 0 ›› Issue (1): 107-111,137.doi: 10.13474/j.cnki.11-2246.2025.0118

一种RTK单历元整周模糊度快速确定MAXCOM-DC组合算法

周命端, 解乾龙, 姬旭, 徐翔, 崔立锟, 覃钰涵

北京建筑大学测绘与城市空间信息学院, 北京 102616

收稿日期:2024-04-18 发布日期:2025-02-09
作者简介:周命端(1985—),男,博士,副教授,主要研究方向为卫星定位理论与技术及其时空应用。E-mail:mdzhou@bucea.edu.cn
基金资助:
北京高等教育“本科教学改革创新项目”(202310016001);北京建筑大学研究生教育教学质量提升项目(J2023003)

MAXCOM-DC combination algorithm of RTK single-epoch integer ambiguity fast resolution

ZHOU Mingduan, XIE Qianlong, JI Xu, XU Xiang, CUI Likun, QIN Yuhan

School of Geomatrics and Urban Spatial Informatics, Beijing University of Civil Engineering and Architecture, Beijing 102616, China

Received:2024-04-18 Published:2025-02-09

摘要/Abstract

摘要： 本文针对传统的RTK单历元整周模糊度确定主辅频相关法(MAXCOM)观测卫星数增多导致单历元整周模糊度确定效率降低的问题,提出了一种单历元卫星分类筛选处理方法;将单历元所有卫星分类为参考星、主星和辅星,应用MAXCOM算法单历元确定主星整周模糊度和DC算法确定辅星整周模糊度,并提出了一种新的RTK单历元整周模糊度快速确定算法,称为MAXCOM-DC组合算法。对一组BDS-3实测数据900个连续观测历元进行动态定位试验,结果分析表明,MAXCOM-DC组合算法可避免在应用MAXCOM算法时辅星对主星整周模糊度搜索效率的影响,将主星数设为6时,单历元整周模糊度快速确定效率平均提升了98.5%,且单历元模糊度成功率达99.9%。本文为高采样数据单历元RTK快速定位提供了一种新算法。

关键词: 实时动态定位, 单历元整周模糊度确定, MAXCOM法, DC算法, MAXCOM-DC组合算法

Abstract: A single-epoch satellite classification and screening strategy is given to address the issue of reduced efficiency of traditional RTK single-epoch integer ambiguity resolution of main and auxiliary correlation method (MAXCOM) using the increased number of observation satellites. All satellites in a single-epoch data are classified as reference-satellite, main-satellites, and auxiliary-satellites. The MAXCOM algorithm is used to determine the ambiguity of the main-satellites and the DC algorithm is used to determine the ambiguity of the auxiliary-satellites. A new algorithm of RTK single-epoch integer ambiguity fast resolution, called MAXCOM-DC combination algorithm is proposed. Through a dynamic positioning experiment and result analysis using a set of BDS-3 measured data with 900 consecutive observation epochs, it is shown that the MAXCOM-DC combination algorithm can avoid the impact of auxiliary-satellites on the search efficiency of the main-satellites integer ambiguity in the application of the MAXCOM algorithm. When the number of main-satellites is set to 6, the efficiency of single-epoch integer ambiguity fast resolution is increased by an average of 98.5%, and the success rate of single-epoch ambiguity resolution is 99.9%. The proposed algorithm provides a new algorithm for single-epoch RTK fast positioning in high-sampling data.

Key words: RTK positioning, single-epoch integer ambiguity resolution, MAXCOM algorithm, DC algorithm, MAXCOM-DC algorithm

中图分类号:

P228

周命端, 解乾龙, 姬旭, 徐翔, 崔立锟, 覃钰涵. 一种RTK单历元整周模糊度快速确定MAXCOM-DC组合算法[J]. 测绘通报, 2025, 0(1): 107-111,137.

ZHOU Mingduan, XIE Qianlong, JI Xu, XU Xiang, CUI Likun, QIN Yuhan. MAXCOM-DC combination algorithm of RTK single-epoch integer ambiguity fast resolution[J]. Bulletin of Surveying and Mapping, 2025, 0(1): 107-111,137.

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一种RTK单历元整周模糊度快速确定MAXCOM-DC组合算法

MAXCOM-DC combination algorithm of RTK single-epoch integer ambiguity fast resolution

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