2nd International ICST Conference on Communications and Networking in China

Research Article

Real-time GPS Software Receiver Correlator Design

  • @INPROCEEDINGS{10.1109/CHINACOM.2007.4469450,
        author={Jin  Tian and Qin  HongLei and Zhu  JunJie and Liu  Yang},
        title={Real-time GPS Software Receiver Correlator Design},
        proceedings={2nd International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2008},
        month={3},
        keywords={Software defined radio real-time GPS receiver software correlator.},
        doi={10.1109/CHINACOM.2007.4469450}
    }
    
  • Jin Tian
    Qin HongLei
    Zhu JunJie
    Liu Yang
    Year: 2008
    Real-time GPS Software Receiver Correlator Design
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2007.4469450
Jin Tian1,*, Qin HongLei1, Zhu JunJie1, Liu Yang1
  • 1: School of Electronics and Information Engineering BeiHang University Beijing, P.R.China
*Contact email: jintian@buaa.edu.cn

Abstract

In this paper, we present a real-time GPS software receiver design and implementation with 12 channels using software correlator. A special equal-length CA code correlation method is introduced to increase the performance of real-time signal processing efficiency. The result is tested by real GPS signal data with 12MHz sampling under Pentium/AMD CPU, and more simulation test is done in DSP development platform. By comparison with other software correlator, the new scheme only use 1/2 memory and can procedure 20% speed improvement, 1/3 signal power lost.