Low latency cycle slip determination for ultra-high sampling rate kinematic GNSS measurement

被引：0
作者：
Feng W. [1 ]
Ren X. [1 ]
Zhang X. [2 ]
Huang D. [1 ]
机构：
[1] Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu
[2] The Third Geodetic Brigade, Ministry of Natural Resources, Chengdu
来源：
Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2021年 / 50卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Cycle slip; High sampling rate; Kinematic; Low latency; MGF;
D O I：
10.11947/j.AGCS.2021.20200143
中图分类号：
学科分类号：
摘要：
For high-speed and high-sampling-rate continuous real-time dynamic (RTK) positioning, fast cycle slip detection plays an important role. In this paper, based on the noise characteristics of ultra-high sampling rate data and the modified geometry-free (MGF) combination, a low-latency cycle slip determination method is proposed for kinematic GNSS data, named OMGF. Based on the noise characteristics of high sampling rate observation, cycle slips are preliminarily repaired by the pseudo-phase combination, and then MGF is used to perform secondary repair on the initial repair results. This paper deduces the success rate of OMGF cycle slip repair for pseudorange and carrier phase observations with different noise levels for different satellite systems, and the observation noise boundary conditions for OMGF method. OMGF method only needs the observation of a single satellite to detect and repair cycle slip, and extend the accuracy requirement of pseudorange observation for cycle slip determination. The experiment results with 20 Hz GPS/BDS/GLONASS measurements show that, the success rate of OMGF method is about 99.998%. Compared with the combination of GF and HMW, OMGF method is about 60 times faster. OMGF can perform cycle slip determination at low complexity and high calculation efficiency, which is beneficial for the mobile terminal with limited computing power resources to quickly process ultra-high sampling rate GNSS data online. © 2021, Surveying and Mapping Press. All right reserved.
引用
收藏
页码：295 / 303
页数：8
相关论文
共 33 条
[1]  
YE Shirong, LIU Yanyan, SONG Weiwei, Et al., A cycle slip fixing method with GPS+GLONASS observations in real-time kinematic PPP, GPS Solutions, 20, 1, pp. 101-110, (2016)
[2]  
GAO Yang, LI Zuofa, Cycle slip detection and ambiguity resolution algorithms for dual-frequency GPS data processing, Marine Geodesy, 22, 3, pp. 169-181, (1999)
[3]  
ZHANG Xiaohong, HE Xiyang, BDS triple-frequency carrier-phase linear combination models and their characteristics, Science China Earth Sciences, 58, 6, pp. 896-905, (2015)
[4]  
YAO Yifei, GAO Jingxiang, WANG Jinling, Et al., Real-time cycle-slip detection and repair for BeiDou triple-frequency undifferenced observations, Survey Review, 48, 350, pp. 367-375, (2016)
[5]  
LI Jinlong, YANG Yuanxi, XU Junyi, Et al., Real-time cycle-slip detection and repair based on code-phase combinations for GNSS triple-frequency undifferenced observa-tion, Acta Geodaetica et Cartographica Sinica, 40, 6, pp. 717-722, (2011)
[6]  
ZHANG Chengjun, XU Qifeng, LI Zuohu, Improving method of cycle slip detection and correction based on combination of GPS pseudorange and carrier phase observations, Acta Geodaetica et Cartographica Sinica, 38, 5, pp. 402-407, (2009)
[7]  
GOAD C C., Precise positioning with the global positioning system, Proceedings of the 3rd International Symposium on Inertial Technology for Surveying and Geodesy, pp. 745-756, (1985)
[8]  
HUANG Lingyong, SONG Lijie, WANG Yan, Et al., BeiDou triple-frequency geometry-free phase combination for cycle-slip detection and correction, Acta Geodaetica et Cartographica Sinica, 41, 5, pp. 763-768, (2012)
[9]  
LI Linyang, LU Zhiping, CUI Yang, Et al., Comparison of cycle slip detection and repair of multiple-frequency based on code-phase and geometry-free combination, Journal of Geodesy and Geodynamics, 35, 3, pp. 396-400, (2015)
[10]  
HUANG Lingyong, ZHAI Guojun, OUYANG Yongzhong, Et al., Ionospheric cycle slip processing in triple-frequency GNSS, Acta Geodaetica et Cartographica Sinica, 44, 7, pp. 717-725, (2015)
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