Performance analysis of FPGA-based software-defined GPS receiver

Ya Tzu Chen, Shau-Shiun Jan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A field-programmable gate array (FPGA) offers the possibility of high parallelism, speed comparable to an ASIC, a large number of input/output (I/O), reprogrammability, and a great deal of design flexibility. For the reason, a real-time GPS software-defined radio (SDR) receiver based on FPGA technology is being in great demand because of its practicality as both a testing device and a final product. In this paper, a real-time FPGA-based GPS SDR receiver is developed to support the GNSS augmentation system projects. All the procedures for the design and the performance analysis of a FPGA-based GPS SDR receiver are presented in detail. In this work, a FPGA board manufactured by Xilinx is chosen as an example, and it collaborates with the Xilinx ISE design tool to develop a FPGA-based GPS SDR receiver. The other branch of this work breaks into the performance analysis of the developed GPS SDR under multipath environments which is evaluated with modified baseband architecture. As for the multipath issue, this paper changes the correlator architecture to reduce the multipath effects. According to the results of the performance analyses, the proper algorithms for multipath environment could be evaluated effectively. Accordingly, this paper could be served as a tutorial for users could learn and build their FPGA-based GPS SDR with the similar software and hardware.

Original languageEnglish
Title of host publication25th International Technical Meeting of the Satellite Division of the Institute of Navigation 2012, ION GNSS 2012
Pages2326-2332
Number of pages7
Publication statusPublished - 2012 Dec 1
Event25th International Technical Meeting of the Satellite Division of the Institute of Navigation 2012, ION GNSS 2012 - Nashville, TN, United States
Duration: 2012 Sept 172012 Sept 21

Publication series

Name25th International Technical Meeting of the Satellite Division of the Institute of Navigation 2012, ION GNSS 2012
Volume3

Other

Other25th International Technical Meeting of the Satellite Division of the Institute of Navigation 2012, ION GNSS 2012
Country/TerritoryUnited States
CityNashville, TN
Period12-09-1712-09-21

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Information Systems

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