Results 21 to 30 of about 72,914 (171)

Multi-frequency smartphone positioning performance evaluation: insights into A-GNSS PPP-B2b services and beyond

Satellite Navigation
In August 2023, Xiaomi unveiled the Redmi K60 Ultra, the first multi-frequency smartphone integrated with BeiDou-3 Navigation Satellite System Precise Point Positioning (PPP-B2b) services and employing PPP technology as the primary positioning method ...
Jiale Wang, Chuang Shi, Fu Zheng, Cheng Yang, Xu Liu, Shuo Liu, Ming Xia, Guifei Jing, Tuan Li, Wu Chen, Qingcheng Li, Yong Hu, Yuan Tian, Yunfeng Shan   +13 more
doaj   +3 more sources

USER IMPLEMENTATION AND ASSESSMENT OF BDS-3 PRECISE POINT POSITIONING AUGMENTATION SERVICE WITH NO ECONOMIC COST [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
The satellite-based precise point positioning (PPP) service enables users with high accuracy positions without Internet connections. Currently, two types of satellite-based PPP services are available.
C. Ouyang, C. Ouyang, C. Ouyang, J. Shi, J. Shi, J. Shi, W. Peng, W. Peng, W. Peng, X. Dong, X. Dong, X. Dong, J. Guo, J. Guo, J. Guo, Y. Yao, Y. Yao   +16 more
doaj   +3 more sources

Comprehensive Analysis of PPP-B2b Service and Its Impact on BDS-3/GPS Real-Time PPP Time Transfer [PDF]

Remote Sensing, 2022
2020 saw the official completion of the BDS-3 and the start of the PPP-B2b signal-based real-time precise point positioning (PPP) service to users in China and the neighboring areas.
Jian Tang, Daqian Lyu, Fangling Zeng, Yulong Ge, Runzhi Zhang   +4 more
doaj   +3 more sources

Evaluation of BDS-3 B1C/B2b Single/Dual-Frequency PPP Using PPP-B2b and RTS SSR Products in Both Static and Dynamic Applications

Remote Sensing, 2022
The BeiDou Global Navigation Satellite System (BDS-3) can provide PPP-B2b satellite-based Precise Point Positioning (PPP) real-time service to the Asia–Pacific region via PPP-B2b signal transmitted from the three Geostationary Earth Orbit (GEO ...
Ruohua Lan, Cheng Yang, Yanli Zheng, Qiaozhuang Xu, Jie Lv, Zhouzheng Gao   +5 more
doaj   +2 more sources

Signal-in-Space and Positioning Performance of BDS Open Augmentation Service [PDF]

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
As a typical augmentation satellite system for centimeter-level positioning, PPP (Precise Point Positioning) service based on PPP-B2b signal of China’s new generation BeiDou system (BDS-3) was released for Asia-Pacific area on July, 2020.
Guangyu Zhou, Guo Chen, Liang Chen, Luotian Pan, Weibin Sun   +4 more
core   +2 more sources

Initial Assessment of BDS PPP-B2b Service: Precision of Orbit and Clock Corrections, and PPP Performance

Remote Sensing, 2021
On 31 July 2020, the Beidou global navigation satellite system (BDS-3) was officially announced as being commissioned. In addition to offering global positioning, navigation, and timing (PNT) services, BDS-3 also provides precise point positioning (PPP ...
Zhixi Nie, Xiaofei Xu, Zhenjie Wang, Jun Du   +3 more
doaj   +3 more sources

Evaluation of the Ionospheric Corrections Generated by Smartphones with Different Real-Time Products [PDF]

Sensors
Ionospheric delay is a dominant error source in global navigation satellite systems (GNSSs). Conventional ionospheric estimation relies on dense networks of expensive geodetic receivers, limiting accessibility and coverage.
Yan Zhang, Yang Jiang, Yang Gao
doaj   +2 more sources

Assessment of BDS-3 PPP-B2b Service and Its Applications for the Determination of Precipitable Water Vapour

Atmosphere
The precise point positioning (PPP) service via the B2b signal (PPP-B2b) on the BeiDou Navigation Satellite System (BDS) provides high-accuracy orbit and clock data for global navigation satellite systems (GNSSs), enabling real-time atmospheric data ...
Xiaoming Wang, Yufei Chen, Jinglei Zhang, Cong Qiu, Kai Zhou, Haobo Li, Qiuying Huang   +6 more
doaj   +2 more sources

Assessment of PPP Using BDS PPP-B2b Products with Short-Time-Span Observations and Backward Smoothing Method

Remote Sensing
The BeiDou Navigation Satellite System (BDS) offers orbit and clock corrections through the B2b signal, enabling Precise Point Positioning (PPP) without relying on ground communication networks.
Lewen Zhao, Wei Zhai
doaj   +2 more sources

A Comparative Study of Factor Graph Optimization-Based and Extended Kalman Filter-Based PPP-B2b/INS Integrated Navigation

Remote Sensing, 2023
Recently, factor graph optimization (FGO)-based GNSS/INS integrated navigation has garnered widespread attention for its ability to provide more robust positioning performance in challenging environments like urban canyons, compared to traditional ...
Shiji Xin, Xiaoming Wang, Jinglei Zhang, Kai Zhou, Yufei Chen   +4 more
doaj   +2 more sources