6th International ICST Conference on Communications and Networking in China

Research Article

Research on Chirp Interference Suppression based on Fractional Fourier Transform

  • @INPROCEEDINGS{10.1109/ChinaCom.2011.6158126,
        author={Qiming Zhao and Qinyu Zhang and Naitong Zhang},
        title={Research on Chirp Interference Suppression based on Fractional Fourier Transform},
        proceedings={6th International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2012},
        month={3},
        keywords={filtering chirp modulation constellation fractional fourier transform},
        doi={10.1109/ChinaCom.2011.6158126}
    }
    
  • Qiming Zhao
    Qinyu Zhang
    Naitong Zhang
    Year: 2012
    Research on Chirp Interference Suppression based on Fractional Fourier Transform
    CHINACOM
    IEEE
    DOI: 10.1109/ChinaCom.2011.6158126
Qiming Zhao1, Qinyu Zhang2,*, Naitong Zhang1
  • 1: Shenzhen Graduate School, Harbin Institute of Technology
  • 2: Shenzhen Gradute School, Harbin Institute of Technology
*Contact email: zqy@hit.edu.cn

Abstract

The issues of suppressing chirp interference in traditional wireless communication systems are studied in this paper. The principle of chirp interference is explained from a new perspective. The band-stop filtering (BSF) in the fractional Fourier transform (FRFT) domain is proposed, which is more effective than common methods such as band-pass filtering (BPF) in the frequency domain, verified by theoretical analysis and simulation results.