Design and implementation of an adaptive code discriminator in a DSP/FPGA-based Galileo receiver

Jyh Ching Juang, Yu Hsuan Chen, Tsai Ling Kao, Yung Fu Tsai

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

In the design of a global navigation satellite system receiver, the tracking performance depends on the code tracking loop and the associated discriminator. An adaptive code discriminator under a multi-correlator architecture has been designed based on a multi-objective principle to achieve a balance among various, sometimes conflicting, design objectives. With the proposed optimization approach and adaptive logic, concerns of large pull-in region and small steady-state error can be addressed. The proposed scheme is implemented in a digital signal processor/field programmable gate array board and an experiment is conducted to process GIOVE-A signals. The test results reveal the advantages of the proposed code tracking architecture and discriminator design.

Original languageEnglish
Pages (from-to)255-266
Number of pages12
JournalGPS Solutions
Volume14
Issue number3
DOIs
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

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