一种顾及BDS-3星座全频点观测信息的周跳探测模型  

A cycle slip detection model taking full frequency observation information of BDS-3 constellation into account

作　　者：黄信 兰鹏 钱鑫 HUANG Xin;LAN Peng;QIAN Xin(Beijing Urban Construction Exploration&Surveying Design Research Institute Co.,Ltd.,Hangzhou 310019,China;School of Spatial Information and Geomatics Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]北京城建勘测设计研究院有限责任公司,浙江杭州310019 [2]安徽理工大学空间信息与测绘工程学院,安徽淮南232001

出　　处：《测绘通报》2025年第1期112-120,共9页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(52074010);安徽省自然科学基金(2108085QD173)。

摘　　要：BDS-3为用户提供高精度位置服务,然而受复杂的应用环境影响,BDS-3高质量服务正面临严峻挑战。为完善以周跳探测为核心的观测数据质量控制模型,并充分考虑BDS-3提供的多频观测信息,本文提出顾及BDS-3全频点的周跳探测模型。首先,在多频线性无几何组合(GF)的基础上,构建基于相位观测的历元差分周跳检测量;然后,利用多频伪距与相位几何不变组合(GB),建立一种多频宽巷模糊度检测量;最后,提出一种基于最小二乘算法的多频组合模型系数快速估计方法。通过多频静态观测数据与实测的动态数据分析表明,本文模型可构建多种线性无关检测量,可实现BDS-3多频观测信息的充分利用,并对各频率上的周跳进行有效探测处理,对完善质量控制模型并实现BDS-3创新应用具有重要意义。BDS-3 is providing the high-precision location-based services.However,due to the impacts of the complicated application environments of users side,the high-quality services of BDS-3 constellation are confronted with challenges.To improve the observation quality control model based on the cycle slip detection solution,a cycle slip detection model of BDS-3 frequency-wide observations is proposed,where the multi-frequency BDS-3 observations are fully used.Firstly,the cycle slip detection values of the epoch-difference phase are constructed by the combinations of the multi-frequency geometry-free(GF)equations.Then,the geometry-based(GB)equations of multi-frequency code and phase observations are used to construct the wide-lane ambiguity of cycle slip detection values.Finally,a method to estimate the model coefficients of the multi-frequency combination models are proposed based the least square algorithm.According to the observations of the static stations and vehicle onboard,it is indicated that a variety of linearly independent cycle slip detection can be obtained by taking the full frequency of BDS-3 into account.Meanwhile,the proposed model can fully utilize the BDS-3 multi-frequency observations to detect the cycle slip.Therefore,It is of great significance to perfect the quality control model and realize the innovative application of BDS-3 based on the proposed method.

关 键 词：BDS-3 周跳探测 全频点观测 多频线性组合 最小二乘 

分 类 号：P228[天文地球—大地测量学与测量工程]