Results 61 to 70 of about 91,121 (140)

B2B e -Marketplaces. What´s In It For Me? [PDF]

(WP28/02 Clave pdf) Commerce among firms through the Internet, the so-called B2B commerce, constitutes a newly developed area in which most theses are yet to be demonstrated. The value proposition for firms in B2B commerce suggests the creation of highly
ENRIQUE DANS
core  

Considering Inter-Frequency Clock Bias for BDS Triple-Frequency Precise Point Positioning

Remote Sensing, 2017
The joint use of multi-frequency signals brings new prospects for precise positioning and has become a trend in Global Navigation Satellite System (GNSS) development. However, a new type of inter-frequency clock bias (IFCB), namely the difference between
Lin Pan, Xingxing Li, Xiaohong Zhang, Xin Li, Cuixian Lu, Qile Zhao, Jingnan Liu   +6 more
doaj   +1 more source

Integrated real-time precise point positioning system with B2b/B2a/B1C services

Satellite Navigation
Real-Time Precise Point Positioning (RTPPP) technology is one of the most important means of positioning and navigation, whereas this type of service requires Internet access.
Zhetao Zhang, Hao Wang, Yuanxi Yang
doaj   +1 more source

Performance Evaluation and Application Field Analysis of Precise Point Positioning Based on Different Real-Time Augmentation Information

Remote Sensing
The most commonly used real-time augmentation services in China are the International GNSS Service’s (IGS) real-time service (RTS), PPP-B2b service, and Double-Frequency Multi-Constellation (DFMC) service of the BeiDou Satellite-Based Augmentation System
Mengjun Wu, Le Wang, Wei Xie, Fan Yue, Bobin Cui   +4 more
doaj   +1 more source

GKit-SSRDecoder: An Open-Source C/C++-Based PPP-B2b and HAS Decoding and Formatted Product Generation Software

IEEE Access
With the rapid development of Real-Time Precise Point Positioning (RT-PPP), the BeiDou-3 PPP-B2b and Galileo High Accuracy Service (HAS) have become pivotal for providing free, global, satellite-based precise correction services.
Zhiyuan Wu, Pan Li, Jiahuan Hu, Jingkai Yuan, Mingbao Wei, Yang Sun, Bao Shu, Bobin Cui, Guanwen Huang   +8 more
doaj   +1 more source

Are PPP Tests Erratically Behaved? Some Panel Evidence [PDF]

This paper examines whether, in addition to standard unit root and cointegration tests, panel approaches also produce test statistics behaving erratically when applied to tests for PPP.
Hanck, Christoph, Caporale, Guglielmo Maria   +1 more
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Analyzing the Precise Point Positioning Performance of Different Dual-Frequency Ionospheric-Free Combinations with BDS-3 and Galileo

Atmosphere
The BeiDou global navigation satellite system (BDS-3) and Galileo systems both broadcast satellite signals on five frequencies, which can form many observation combinations with dual-frequency ionospheric-free (DFIF) precise point positioning (PPP). This
Xingli Sun, Zhan Shu, Jinjie Yao
doaj   +1 more source

Challenges in implementing PPP strategy for infrastructure delivery in Nigeria [PDF]

, 2013
The Nigerian government’s efforts at engaging the private sector in the massive infrastructure development necessary to meet its goal of being one of the best 20 economies in the world by 2020. However, using PPP for infrastructure delivery in Nigeria is
Zhou, Lei, Perera, Srinath, Babatunde, Solomon, Udeaja, Chika   +3 more
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Real-time multi-frequency phase OSB estimation from BDS-3 PPP-B2b and Galileo HAS

To address the long convergence time of satellite-based Precise Point Positioning (PPP) using BDS-3 PPP-B2b and Galileo high accuracy service (HAS) in the Asia-Pacific region, this study investigates real-time multi-frequency phase OSB estimation and PPP-
Yingdong Zhou, Shuang Sun, Min Wang, Feng Ming, Zhanpeng Zhang, Changjian Liu   +5 more
core   +1 more source

BDS-PPP-B2b-Based Smartphone Precise Positioning Model Enhanced by Mixed-Frequency Data and Hybrid Weight Function

Applied Sciences
Compared to high-cost hardware-based Global Navigation Satellite System (GNSS) positioning techniques, smartphone-based precise positioning technology plays an important role in applications such as the Internet of Things (IoT). Since Google released the
Zhouzheng Gao, Zhixiong Wu, Shiyu Liu, Cheng Yang   +3 more
doaj   +1 more source