A Study on Cycle Slip Detection for Integrated Navigation of Single Frequency GNSS Receiver and Low Cost INS

2016 ◽  
Author(s):  
Younsil Kim ◽  
Junesol Song ◽  
Byungwoon Park ◽  
Changdon Kee
Keyword(s):  
Low Cost ◽  
Single Frequency ◽  
Cycle Slip ◽  
Integrated Navigation ◽  
Gnss Receiver ◽  
Cycle Slip Detection ◽  
Slip Detection

High-rate Doppler-aided cycle slip detection and repair method for low-cost single-frequency receivers

GPS Solutions ◽  
2020 ◽  
Vol 24 (3) ◽  
Author(s):  
Jiaojiao Zhao ◽  
Manuel Hernández-Pajares ◽  
Zishen Li ◽  
Liang Wang ◽  
Hong Yuan
Keyword(s):  
Low Cost ◽  
High Rate ◽  
Single Frequency ◽  
Cycle Slip ◽  
Repair Method ◽  
Cycle Slip Detection ◽  
Slip Detection

scholarly journals GPS Cycle Slip Detection Considering Satellite Geometry Based on TDCP/INS Integrated Navigation

Sensors ◽  
2015 ◽  
Vol 15 (10) ◽  
pp. 25336-25365 ◽  
Author(s):  
Younsil Kim ◽  
Junesol Song ◽  
Changdon Kee ◽  
Byungwoon Park
Keyword(s):  
Cycle Slip ◽  
Integrated Navigation ◽  
Satellite Geometry ◽  
Cycle Slip Detection ◽  
Slip Detection

A New Cycle Slip Detection and Repair Method for Single-Frequency GNSS Data

2018 ◽  
Vol 71 (6) ◽  
pp. 1492-1510 ◽  
Author(s):  
Qusen Chen ◽  
Hua Chen ◽  
Weiping Jiang ◽  
Xiaohui Zhou ◽  
Peng Yuan
Keyword(s):  
Satellite System ◽  
Single Frequency ◽  
Half Cycle ◽  
Cycle Slip ◽  
Cycle Slips ◽  
Small Cycle ◽  
Cycle Slip Detection ◽  
Gnss Data ◽  
The Impact ◽  
Slip Detection

Cycle slip detection for single frequency Global Navigation Satellite System (GNSS) data is currently mainly based on measurement modelling or prediction, which cannot be effectively performed for kinematic applications and it is difficult to detect or repair small cycle slips such as half-cycle slips. In this paper, a new method that is based on the total differential of ambiguity and Least-Squares Adjustment (LSA) for cycle slip detection and repair is introduced and validated. This method utilises only carrier-phase observations to build an ambiguity function. LSA is then conducted for detecting and repairing cycle slips, where the coordinate and cycle slips are obtained successively. The performance of this method is assessed through processing short and long baselines in static and kinematic modes and the impact of linearization and atmospheric errors are analysed at the same time under a controlled variable method. The results indicate this method is very effective and reliable in detecting and repairing multiple cycle slips, especially small cycle slips.

scholarly journals Carrier Phase-Based Precise Heading and Pitch Estimation Using a Low-Cost GNSS Receiver

2021 ◽  
Vol 13 (18) ◽  
pp. 3642
Author(s):  
Wei Ding ◽  
Wei Sun ◽  
Yang Gao ◽  
Jiaji Wu
Keyword(s):  
Carrier Phase ◽  
Measurement Errors ◽  
Low Cost ◽  
Installation Space ◽  
Estimation Methods ◽  
Single Frequency ◽  
Cycle Slip ◽  
Pitch Estimation ◽  
Gnss Receiver ◽  
Mean Square Errors

Attitude and heading estimation methods using the global navigation satellite system (GNSS) are generally based on multi-antenna deployment, where the installation space and system cost increase with the increase in the number of antennas. Since the single-antenna receiver is still the major choice of the mass market, we focus on precise and reliable heading and pitch estimation using a low-cost GNSS receiver. Carrier phase observations are precise but have an ambiguity problem. A single difference between consecutive epochs can eliminate ambiguity and reduce the measurement errors. In this work, a measurement model based on the time-differenced carrier phases (TDCPs) is utilized to estimate the precise delta position of the antenna between two consecutive epochs. Then, considering the motion constraint, the heading and pitch angles of a moving land vehicle can be determined by the components of the estimated receiver delta position. A threshold on the length of the delta position is selected to avoid large errors in static periods. To improve the reliability of the algorithm, the Doppler-aided cycle slip detection method is applied to exclude carrier phases with possible cycle slips. A real vehicular dynamic experiment using a low-cost, single-frequency GNSS receiver is conducted to evaluate the proposed algorithm. The experimental results show that the proposed algorithm is capable of providing precise vehicular heading and pitch estimates, with both the root mean square errors being better than 1.5°. This also indicates that the cycle slip exclusion is indispensable to avoid unexpected large errors.

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