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Sensors 2014, 14(10), 18878-18885; doi:10.3390/s141018878

Use of NTRIP for Optimizing the Decoding Algorithm for Real-Time Data Streams

1
National Time Service Center, The Chinese Academy of Sciences, Xi'an 710600, China
2
University of the Chinese Academy of Sciences, Beijing 100049, China
3
Key Laboratory for Precision Navigation and Timing Technology, National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
4
Xidian University, Xi'an 710071, China
*
Author to whom correspondence should be addressed.
Received: 12 June 2014 / Revised: 28 July 2014 / Accepted: 30 September 2014 / Published: 10 October 2014
(This article belongs to the Special Issue Wireless Sensor Networks and the Internet of Things)
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Abstract

As a network transmission protocol, Networked Transport of RTCM via Internet Protocol (NTRIP) is widely used in GPS and Global Orbiting Navigational Satellite System (GLONASS) Augmentation systems, such as Continuous Operational Reference System (CORS), Wide Area Augmentation System (WAAS) and Satellite Based Augmentation Systems (SBAS). With the deployment of BeiDou Navigation Satellite system(BDS) to serve the Asia-Pacific region, there are increasing needs for ground monitoring of the BeiDou Navigation Satellite system and the development of the high-precision real-time BeiDou products. This paper aims to optimize the decoding algorithm of NTRIP Client data streams and the user authentication strategies of the NTRIP Caster based on NTRIP. The proposed method greatly enhances the handling efficiency and significantly reduces the data transmission delay compared with the Federal Agency for Cartography and Geodesy (BKG) NTRIP. Meanwhile, a transcoding method is proposed to facilitate the data transformation from the BINary EXchange (BINEX) format to the RTCM format. The transformation scheme thus solves the problem of handing real-time data streams from Trimble receivers in the BeiDou Navigation Satellite System indigenously developed by China. View Full-Text
Keywords: NTRIP; real-time; BeiDou; GNSS; international GNSS Monitoring and Assessment System; RTCM NTRIP; real-time; BeiDou; GNSS; international GNSS Monitoring and Assessment System; RTCM
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

He, Z.; Tang, W.; Yang, X.; Wang, L.; Liu, J. Use of NTRIP for Optimizing the Decoding Algorithm for Real-Time Data Streams. Sensors 2014, 14, 18878-18885.

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