Chinese Navigation Satellite Systems

Yang, Yuanxi; Jing, Tang; Montenbruck, Oliver

doi:10.1007/978-3-319-42928-1_10

Cited by 40 publications

(20 citation statements)

References 49 publications

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“…It was originally made up of two geostationary orbit satellites (GEO), followed by an additional GEO satellite for backup in 2003 . BDS‐1 was considered to be a positioning system rather than a navigation system because the user position was provided by an operational control system (OCS) based on the radio determination satellite service (RDSS) . RDSS employs two‐way channels between users and OCS, with all user locations tracked by the OCS.…”

Section: Introductionmentioning

confidence: 99%

Introduction to BeiDou‐3 navigation satellite system

et al. 2019

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China's BeiDou navigation system (BDS) has evolved from the demonstration navigation satellite system (BDS-1) to the regional navigation satellite system (BDS-2). Now, the global BeiDou navigation system (BDS-3) is in construction and is proceeding well. The design and functions of BDS-3 are quite different from those of both BDS-1 and BDS-2. In this paper, the general design, the coordinate reference system, and the system time basis of BDS-3 are introduced. Several new payloads designed to accomplish different objectives are described as well as the platforms on which they are hosted. Since BDS-3 consists of several different constellations, the general service capabilities and special service functions provided by these different constellations are described. The performances of the initial BDS-3 platforms are evaluated based on the available eight-medium Earth orbit (MEO) satellite configuration. The results of satellite orbit determination and prediction with and without the BDS-3 inter-satellite links (ISL) are compared and analyzed.

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Section: Introductionmentioning

confidence: 99%

Introduction to BeiDou‐3 navigation satellite system

et al. 2019

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“…The model resembles GPSKlob but is formulated in the geographic reference frame. The eight broadcast coefficients of BDSKlob are estimated with ionospheric TECs derived from regional BeiDou monitoring stations and uploaded for broadcasting with an interval of 2 hours . BDS‐3 adopts the new correction model BDGIM for global ionospheric delay mitigation.…”

Section: Mathematical Formulation Of Bdgimmentioning

confidence: 99%

“…Unlike that of GPS and Galileo, the current BDS ground monitoring stations are mainly located in mainland China . As the current broadcast coefficients of BDGIM transmitted in the navigation message BDS‐3 SVs are estimated from the regional BeiDou monitoring stations, the model is expected to show degraded performance outside the current service areas of BDS.…”

Section: Data Sources and Processingmentioning

confidence: 99%

“…BDGIM takes advantage of SH functions for global ionospheric TEC modeling and prediction with a reduction of the computation complexity for usage as a broadcast ionospheric model. The nine correction coefficients of BDGIM, which have been transmitted in the navigation message of BDS‐3‐IOV and BDS‐3 SVs, are generated at the operational control system (OCS) of BDS at regional BeiDou monitoring stations …”

Section: Introductionmentioning

confidence: 99%

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The BeiDou global broadcast ionospheric delay correction model (BDGIM) and its preliminary performance evaluation results

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A global ionospheric delay correction model (BeiDou global broadcast ionospheric delay correction model [BDGIM]) is proposed for the singlefrequency ionospheric delay correction of the third phase of the BeiDou navigation satellite system (BDS-3). An initial performance assessment of BDGIM was conducted with data collected in China and worldwide. For regional analysis, the broadcast coefficients of BDGIM were provided by the operational control system of BDS, while for global analysis, the coefficients of BDGIM were estimated using global positioning system (GPS)-derived total electron contents (TECs) obtained from 19 globally distributed monitoring sites. In China, the performance of BDGIM was evaluated by GPS-TEC derived from 40 test sites during day of year (DOY) 060 to 181, 2015. The ionospheric errors can be mitigated by 80.9% for BDGIM. On the global scale, the ionospheric TECs derived from 50 sites of the International Global Navigation Satellite System (GNSS) Services (IGS) were used as references during DOY 220 to 365, 2014, and BDGIM can correct for 77.6% of the ionospheric delay.

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“…Users can obtain PNT service by receiving any branch signal and navigation message, and the service mode of single, dual, or triple frequency can be chosen by users. Since BDS‐2 was officially put into full operation in 2012, its navigation signal measurement accuracy, satellite orbit and clock correction performance, positioning accuracy, and timing accuracy have been fully verified . Under normal circumstances, the radial accuracy of the broadcast ephemeris of BDS‐2 satellites is better than 0.5 m, the precision of the ephemeris of the IGSO and MEO satellites is better than 10 cm, and the precision of the ephemeris of the GEO satellites is better than 50 cm .…”

Section: Introductionmentioning

confidence: 99%

Improved design of control segment in BDS‐3

et al. 2019

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The Chinese BeiDou Navigation Satellite System (BDS) is accelerating its development and has been applied in various fields. Compared with other satellite navigation systems in the world, BDS has many unique features such as multiservices integrated with Radio Determination Satellite Service (RDSS), Radio Navigation Satellite Service (RNSS), and Satellite-Based Augmentation Service (SBAS), a mixed-orbit satellite constellation, and flexible navigation messages, etc. This paper presents the distinctive innovative designs as well as processing strategies in BDS. First, this paper introduces the characteristics of BeiDou navigation messages broadcast by the hybrid constellation of satellites in Geostationary Earth Orbit (GEO), Inclined Geo-Synchronization Orbit (IGSO), and Medium Earth Orbit (MEO). Next, the innovative design and operation of the control segment are discussed. Finally, highlights of the unique usage algorithm of the BDS navigation message information are presented, such as the BDS satellite clock correction and TGD parameters, satellite ephemeris and almanac, and ionospheric delay parameters.

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Chinese Navigation Satellite Systems

Cited by 40 publications

References 49 publications

Introduction to BeiDou‐3 navigation satellite system

Introduction to BeiDou‐3 navigation satellite system

The BeiDou global broadcast ionospheric delay correction model (BDGIM) and its preliminary performance evaluation results

Improved design of control segment in BDS‐3

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