Estimation and suppression of broadband non-stationary interference based on FFT and FRFT

Gaoping Shao*, Jianping An

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

A fast Fourier transform (FFT) and fractional Fourier transform (FRFT)-based interference suppression scheme for wideband nonstationary interference is proposed in direct sequence spread spectrum communication. The interference parameters are coarsely estimated by FFT and are accurately estimated by FRFT. The nonstationary interference can be synthesized from received signals by least-squares methods. The synthesized interference is subtracted from the received signals in the time domain and the signal-to-interference ratio is increased on the input of the correlator. Compared with the masking interference excision method, the scheme is more stable on bit error rate (BER) performance and simple on the computational complexity.

源语言英语
页(从-至)160-164
页数5
期刊Shuju Caiji Yu Chuli/Journal of Data Acquisition and Processing
25
2
出版状态已出版 - 3月 2010

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