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Proceedings Paper

Combined software GPS/Galileo receiver and applications
Author(s): Xiaoli Liu; Jingnan Liu; Tao Li; Robert D. McLeod
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Paper Abstract

Modernized GPS and Galileo will be available to civil users at the end of this decade, thus there is a need for unified platform that can receive multi-frequency signal of GPS/Galileo to develop and test for growing variety of diverse applications. The unified platform for various applications will speed the design process and reduce its cost. Such a platform need an open architecture and design flexibility so that modifications and testing can be done conveniently and efficiently. The flexible, reconfigurable, combined and software based Global Navigation Satellite Systems (GNSS) receiver will allow development, test and measurement of a variety of receiver architectures. This paper proposes a structure of combined multi-frequency software GPS/Galileo receiver for future GNSS receiver, which can utilize the planned GPS and Galileo publicly available signals. The receiver consists of a hardware multi-frequency front end responsible for both capturing all planned civil satellite-based radio-navigation signals. A followed programmable processor performs signal correlation. The correlator output then goes on signal processing totally using software. The correlator can be implemented either completely in software or using Field Programmable Gate Array (FPGA) for real time processing. The software modules for signal processing are easily updated. Improvements in accuracy and integrity are also achieved by GPS/Galileo Receiver Autonomous Integrity Monitoring (RAIM). The combined software implementation of processing modules makes this system a truly versatile GNSS receiver suitable for various applications.

Paper Details

Date Published: 5 January 2006
PDF: 8 pages
Proc. SPIE 5985, International Conference on Space Information Technology, 598552 (5 January 2006); doi: 10.1117/12.658519
Show Author Affiliations
Xiaoli Liu, Wuhan Univ. (China)
Jingnan Liu, Wuhan Univ. (China)
Tao Li, Wuhan Univ. (China)
Robert D. McLeod, Univ. of Manitoba (Canada)

Published in SPIE Proceedings Vol. 5985:
International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Xiulin Hu, Editor(s)

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