Assessment of multi-frequency global navigation satellite system precise point positioning models using GPS, BeiDou, GLONASS, Galileo and QZSS

Su, Ke; Jin, Shuanggen; Jiao, Guoqiang

doi:10.1088/1361-6501/ab69d5

Cited by 34 publications

(21 citation statements)

References 40 publications

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“…An estimable IFB parameter is necessary to mitigate the receiver UCDs inconsistency between the B1I/B3I and B1I/B2a combinations. The TF2 model can be expressed as (Su et al 2020):…”

Section: If Triple-frequency Ppp With Two Combinationsmentioning

confidence: 99%

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PPP models and performances from single- to quad-frequency BDS observations

Jin

2020

Satell Navig

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100

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Nowadays, China BeiDou Navigation Satellite System (BDS) has been developed well and provided global services with highly precise positioning, navigation and timing (PNT) as well as unique short-message communication, particularly global system (BDS-3) with higher precision multi-frequency signals. The precise point positioning (PPP) can provide the precise position, receiver clock, and zenith tropospheric delay (ZTD) with a stand-alone receiver compared to the traditional double differenced relative positioning mode, which has been widely used in PNT, geodesy, meteorology and so on. However, it has a lot of challenges for multi-frequency BDS PPP with different strategies and more unknown parameters. In this paper, the detailed PPP models using the single-, dual-, triple-, and quad-frequency BDS observations are presented and evaluated. Firstly, BDS system and PPP method are introduced. Secondly, the stochastic models of time delay bias in BDS-2/BDS-3 PPP including the neglection, random constant, random walk and white noise are presented. Then, three single-frequency, four dual-frequency, four triple-frequency and four quad-frequency BDS PPP models are provided. Finally, the BDS PPP models progress and performances including theoretical comparison of the models, positioning performances, precise time and frequency transfer, ZTD, inter-frequency bias (IFB) and differential code bias (DCB) are presented and evaluated as well as future challenges. The results show that the multi-frequency BDS observations will greatly improve the PPP performances.

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“…An estimable IFB parameter is necessary to mitigate the receiver UCDs inconsistency between the B1I/B3I and B1I/B2a combinations. The TF2 model can be expressed as (Su et al 2020):…”

Section: If Triple-frequency Ppp With Two Combinationsmentioning

confidence: 99%

“…Similar to DF4 model, the ionosphere-constrained triplefrequency PPP (TF4) model with B1I, B3I and B2a signals needs an additional receiver DCB parameter in addition to the IFB parameter. The TF4 model with m BDS satellites can be written as (Su et al 2020):…”

Section: Ionosphere-constrained Triple-frequency Pppmentioning

confidence: 99%

PPP models and performances from single- to quad-frequency BDS observations

Jin

2020

Satell Navig

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100

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“…The undifferenced triple-frequency PPP model using GPS and Galileo observations can be written using Equations (1) and (2) as follows [ 46 ]:

where

and

refer to GPS and Galileo satellite systems, respectively;

and

are the undifferenced triple-frequency pseudoranges combination for GPS and Galileo systems, respectively;

and

are the undifferenced triple-frequency carrier phases combination for GPS and Galileo systems, respectively;

and

are the wet zenith tropospheric delays for GPS and Galileo, respectively;

is the inter-system bias.…”

Section: Triple-frequency Ppp Modelmentioning

confidence: 99%

“…More recently, the performance of triple-frequency PPP has been examined in a number of studies, e.g., [37][38][39][40][41][42][43][44][45][46]. Li et al [42] developed a triple-frequency triple-constellation (i.e., GPS, BeiDou and Galileo) precise point positioning ambiguity resolution (PPP-AR) model.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Triple-Frequency GPS/Galileo Techniques for Precise Static and Kinematic Applications

Rabbou

Abdelazeem

Morsy

2021

Sensors

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The objective of this research was to develop new precise point positioning (PPP) processing models using triple-frequency GPS/Galileo observations. Different triple-frequency PPP models were developed including undifferenced, between-satellite single-difference (BSSD) and semi-decoupled PPP models. Additionally, a dual-frequency ionosphere-free undifferenced PPP model was developed. The performance of our developed PPP models was evaluated for both static and kinematic applications. To validate the proposed PPP models for static applications, triple-frequency GPS/Galileo observations spanning three successive days from eight globally distributed reference stations were acquired. Then, the observations were processed using the four static PPP solutions. It is found that the 3D positioning accuracy of the triple-frequency semi-decoupled, BSSD and undifferenced PPP models is enhanced after 10 min by about 50, 41 and 29%, respectively, compared with the dual-frequency undifferenced PPP model. After 20 min of processing, improvements in the 3D positioning accuracy by 40, 31 and 21% are obtained for the triple-frequency semi-decoupled, BSSD and undifferenced PPP models, respectively, with respect to the dual-frequency PPP model. The 3D positioning accuracy is also improved after 60 min, compared with the dual-frequency solution, by 40, 40 and 35% for the triple-frequency semi-decoupled, BSSD and undifferenced PPP solutions, respectively. For kinematic application validation, a vehicle trajectory was carried out. The collected triple-frequency GPS/Galileo observations were processed using the four kinematic PPP solutions. It is shown that the triple-frequency semi-decupled, BSSD and undifferenced PPP solutions enhance the 3D positioning accuracy by 31, 23 and 10%, respectively, in comparison with the dual-frequency undifferenced PPP solutions.

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“…(2) At present, there are six main commercially available communication technologies that can be used for the remote transmission of ship data, and their technical characteristics are shown in Table 1. (3)(4)(5)(6)(7)(8) We perform a comparative analysis on these technical characteristics and develop a BDSbased remote ship data transmission technology. BDS is a system that has many advantages, which include wide coverage, low cost, secure transmission, and real-time monitoring of the ship's path trajectory as well as relaying safety status information.…”

Section: Introductionmentioning

confidence: 99%

Remote Data Transmission Technology Based on BeiDou Satellite Navigation Sensor System Onboard Ship

Zhuang¹,

Xu²,

Gao³

et al. 2021

Sensors and Materials

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Currently, commercially available systems for ship navigation and remote data transmission technology are maritime satellites and BeiDou satellite systems, the global positioning system (GPS), and mobile communication technology. Among these, mobile communication technology and GPS can only perform ship navigation and lack data transmission functionality. In this research, we analyze technical characteristics of several common remote data transmission methods and we develop and design an in-ship remote data transmission system based on the BeiDou Satellite Navigation Sensor System (BDS). We use an STC89C52RC data acquisition microcontroller chip, which is connected with an HS215 BeiDou communication position module via an RS232 standard serial port that allows us to capture, collect, parse, package, and send ship data. We adopt the shore-based ship standard NMEA protocol to receive, parse, display, and save data. Our system is tested in a simulation and with a real ship, and the results are in line with expectations (low cost, reliable, and safe). We believe that our system will be economically and socially beneficial by solving maritime problems and also beneficial to the safety and emergency rescue of marine vessels. Table 1 Comparison of ship remote data transmission technologies. Communication technology Communication features Scope of application Universal mobile communication network Low communication cost and large network bandwidth; small coverage and low network security. Suitable for inland rivers and offshore ships. Automatic identification system (AIS) Can directly realize the speed measurement navigation function of ship positioning and monitoring and carry out information broadcasting; high service cost, seriously affected by electromagnetic environment interference, communication distance is limited. Suitable for inland rivers and offshore ships. Maritime satellite system Can provide data link for ocean-going ships; high cost, low communication bandwidth, maximum speed is only 492 Kbps. Suitable for global navigation ships. Spread spectrum communication technology Strong concealment and good anti-interference performance; the system uses a wide frequency band and has a limited data transmission rate and distance. Suitable for inland rivers and offshore ships. GPS Accurate positioning and strong anti-interference ability. Only applicable to ship positioning, unable to achieve communication. BDS All-weather, all-day, high-precision positioning; short message communication has low cost and high security. Suitable for global navigation ships.

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Assessment of multi-frequency global navigation satellite system precise point positioning models using GPS, BeiDou, GLONASS, Galileo and QZSS

Cited by 34 publications

References 40 publications

PPP models and performances from single- to quad-frequency BDS observations

PPP models and performances from single- to quad-frequency BDS observations

Performance Evaluation of Triple-Frequency GPS/Galileo Techniques for Precise Static and Kinematic Applications

Remote Data Transmission Technology Based on BeiDou Satellite Navigation Sensor System Onboard Ship

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